CN115828459B - R-angle failure mode control method for joint of sandwich eccentric structure - Google Patents
R-angle failure mode control method for joint of sandwich eccentric structure Download PDFInfo
- Publication number
- CN115828459B CN115828459B CN202211526390.7A CN202211526390A CN115828459B CN 115828459 B CN115828459 B CN 115828459B CN 202211526390 A CN202211526390 A CN 202211526390A CN 115828459 B CN115828459 B CN 115828459B
- Authority
- CN
- China
- Prior art keywords
- joint
- simulation
- eccentricity
- sandwich
- failure mode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004088 simulation Methods 0.000 claims abstract description 63
- 238000006073 displacement reaction Methods 0.000 claims abstract description 35
- 238000009864 tensile test Methods 0.000 claims abstract description 27
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 7
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000036586 afterload Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of simulation, in particular to a method for controlling an R-angle failure mode of a joint of an interlayer eccentric structure, which comprises the following steps: establishing a simulation model of the sandwich eccentric structure joint, carrying out tensile model constraint on the simulation model, and setting displacement monitoring points; carrying out actual tensile test on the sandwich eccentric structure to obtain a load-displacement curve and a failure mode in the joint stretching process; performing a simulation tensile test on the simulation model, obtaining a load-displacement curve of the simulation tensile test and analyzing a joint failure mode; and correcting the simulation model according to the actual test result, converting the displacement of the monitoring point into the eccentricity based on the accurate simulation result, outputting a load/eccentricity-displacement curve, and controlling the failure mode of the joint R angle by controlling the fluctuation amplitude of the eccentricity. The invention realizes the control of different failure modes by means of simulating the tensile test analysis and changing the fluctuation condition of the eccentricity.
Description
Technical Field
The invention relates to the technical field of simulation, in particular to a method for controlling an R-angle failure mode of a joint of an interlayer eccentric structure.
Background
The sandwich eccentric structure is shown in fig. 1, and is of two staggered connection structures, after loads are applied to two ends of the structure, dashed lines in the figure represent the directions of the loads, and in the initial stage, the two dashed lines are parallel, and the distance between the two dashed lines is called eccentricity; however, in such a sandwich eccentric structure, after the applied load increases, the sandwich eccentric structure is subjected to out-of-plane deformation by a bending moment in the plate thickness direction, and as the out-of-plane deformation increases, the eccentricity gradually decreases to zero, as shown in fig. 1.
The sandwich eccentric structure joint shown in fig. 2, which consists of a skin and a small-density core, has the advantages of low density and high bending stiffness, is widely applied to the fields of aerospace, marine ships, industrial equipment and the like, forms a sandwich eccentric structure through gluing and riveting, gradually reduces the eccentricity to zero under the action of tensile load as shown in fig. 2, and then is extremely easy to crack at the R angle of the joint and fails along with the expansion of the crack;
The inventor researches find that there are two modes of crack failure of the R angle, one is a small-range expansion mode shown in fig. 3, in which after an initial crack is generated in the joint, the initial crack can be expanded in a small range, and the bearing capacity is greatly reduced, but the whole structure does not reach a serious damage degree; the other is a large-range expansion mode shown in fig. 4, after an initial crack is generated at the R angle of the mode, the crack can be expanded in a large range when the joint load is greatly increased, so that the final failure is caused, and the whole structure is seriously damaged; therefore, if the joint needs high bearing load, the second failure mode is more suitable, if the joint needs to bear load continuously after crack generation, the moment disastrous damage is avoided, and the first failure mode is more suitable;
However, how to control the R-angle failure mode of a sandwich eccentric structure joint has not been addressed in the prior art.
Disclosure of Invention
In view of at least one of the above technical problems, the invention provides a method for controlling an R-angle failure mode of a joint with an eccentric sandwich structure, which adopts a simulation analysis mode to analyze and control the failure mode.
According to a first aspect of the invention, there is provided a method of controlling the R-angle failure mode of a joint of a sandwich eccentric structure, comprising the steps of:
Establishing a simulation model of the sandwich eccentric structure joint, carrying out tensile model constraint on the simulation model, and setting displacement monitoring points;
carrying out actual tensile test on the sandwich eccentric structure to obtain a load-displacement curve and a failure mode in the joint stretching process;
Performing a simulation tensile test on the simulation model, obtaining a load-displacement curve of the simulation tensile test and analyzing a joint failure mode;
Comparing and analyzing simulation and test results, and verifying the accuracy of a simulation model or correcting the simulation model;
And converting the displacement of the monitoring point into eccentricity based on an accurate simulation result, outputting a load/eccentricity-displacement curve, and controlling the failure mode of the joint R angle by controlling the fluctuation amplitude of the eccentricity.
In some embodiments of the invention, the simulation model of the sandwich eccentric structure is a glue joint, a mechanical connection or a hybrid connection, which is a hybrid form of glue joint and mechanical connection.
In some embodiments of the present invention, when the simulation model of the sandwich eccentric structure is a hybrid connection, wherein the adhesive layer uses a cohesive force model to simulate deformation and damage failure of the adhesive layer, and the mechanical connection uses a solid unit to model.
In some embodiments of the invention, the method of calculation of the simulated tensile test is to show quasi-static stretching of the dynamic simulated joint.
In some embodiments of the present invention, when the simulation model is subjected to the stretch model constraint, the constraint condition is that one side is fixed and all degrees of freedom are constrained, and the other side only releases the free end of the stretching direction.
In some embodiments of the present invention, when a simulated tensile test is performed on a simulated model, coupling constraint is adopted for stretching, the constraint area is an actual clamping area of the stretching end, and the constraint reference point is located on an axial line of the stretching direction of the joint.
In some embodiments of the invention, the coefficient of friction is set in practice and the load is loaded by a smooth curve when the simulation model is subjected to a simulated tensile test.
In some embodiments of the invention, the displacement monitoring point is located in a central region along the length of the joint.
In some embodiments of the invention, the eccentricity fluctuation is evaluated by dividing the eccentricity fluctuation range by the joint span, and when the eccentricity fluctuation range is less than 0.5% divided by the joint span, the fluctuation range is small, otherwise, the fluctuation range is large.
In some embodiments of the present invention, the control method of the R-angle failure mode is: if a high load bearing joint is required, reinforcing the connection of the rivet or the glue layer so that the eccentricity fluctuation amplitude divided by the joint span is less than 0.5%; if it is desired that the joint is still able to continue to bear after the initiation of the crack, the rivet or bond line connection is weakened such that the eccentricity fluctuation amplitude divided by the joint span is not less than 0.5%.
The beneficial effects of the invention are as follows: according to the invention, the R angle of the joint of the sandwich eccentric structure is subjected to modeling simulation analysis, a load/eccentricity-displacement curve is output, and according to the load/eccentricity-displacement curve and the fluctuation condition of the monitoring points, the positive correlation between the R angle failure mode and the eccentricity fluctuation is analyzed, so that the control of different failure modes is realized by changing the fluctuation condition of the eccentricity, and an executable scheme is provided for the control of the R angle failure mode of the joint of the sandwich eccentric structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of the structure of the eccentricity change of the sandwich eccentric structure in the prior art;
FIG. 2 is a schematic diagram of the structure of the eccentricity variation of the sandwich eccentric structure joint during stretching in the background art of the invention;
FIG. 3 is a schematic view of a small R-angle failure structure in the background of the invention;
FIG. 4 is a schematic view of a wide range of R-angle failure structure in the background of the invention;
FIG. 5 is a flow chart illustrating the steps of a method for controlling the failure mode of the R angle of the joint of the sandwich eccentric structure according to the embodiment of the invention;
FIG. 6 is a graph of load/eccentricity versus displacement for a single row rivet of a sandwich eccentric structure joint in accordance with an embodiment of the present invention;
FIG. 7 is a graph of load/eccentricity versus displacement for a double row rivet of a sandwich eccentric structure joint in accordance with an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The inventor finds that after the initial crack is generated at the R angle of the joint of the sandwich eccentric structure, the eccentricity can generate a fluctuation effect, and after the initial crack is generated at the R angle, if the fluctuation amplitude of the eccentricity is larger, the joint is loose, the bearing capacity of the joint is reduced, the load of the failure of the R angle at the other side can be reached after long-time continuous stretching, the initial failure interval of the R angle at two times is longer, and at the moment, under the condition of low load, the crack is expanded in a small range, and the bearing capacity is greatly reduced after the expansion, but the whole structure does not reach the degree of serious damage; when the fluctuation amplitude of the R angle of the sandwich eccentric structure is smaller, the R angle is listed as being expanded when the joint load is greatly increased, the crack expansion range is large in the state, and the failure time interval of the R angles at the two ends is also shorter; therefore, the inventor designs a failure mode for controlling the R angle of the joint by controlling the fluctuation amplitude of the eccentricity after analyzing the initial crack of the R angle through a model simulation form, and the failure mode has great significance on the safety of the structure.
The control method for the R-angle failure mode of the joint of the sandwich eccentric structure as shown in fig. 5 to 7 comprises the following steps:
S10: establishing a simulation model of the sandwich eccentric structure joint, carrying out tensile model constraint on the simulation model, and setting displacement monitoring points; in the embodiment of the present invention, the simulation software has various choices, for example, abaqus software or other simulation software is selected, and a tensile model constraint is set, and the tensile constraint model is described in detail in the following section of the embodiment of the present invention;
S20: carrying out actual tensile test on the sandwich eccentric structure to obtain a load-displacement curve and a failure mode in the joint stretching process; the purpose of carrying out the actual tensile test is to verify the authenticity of the subsequent simulation model tensile test, and the failure mode of the joint R angle is conveniently observed through the actual tensile test;
S30: performing a simulation tensile test on the simulation model, obtaining a load-displacement curve of the simulation tensile test and analyzing a joint failure mode; the simulation tensile test is carried out to obtain a tensile test result, a load-displacement curve with the same format as that of the actual tensile test is output, and whether the simulation result is close to the actual result or not is convenient to observe and compare;
S40: comparing and analyzing simulation and test results, and verifying the accuracy of a simulation model or correcting the simulation model; if the results are the same or close, the following steps can be continued, and if the result difference is large, parameters in simulation software need to be adjusted;
S50: and converting the displacement of the monitoring point into eccentricity based on an accurate simulation result, outputting a load/eccentricity-displacement curve, and controlling the failure mode of the joint R angle by controlling the fluctuation amplitude of the eccentricity. As shown in fig. 6, the broken line shows the eccentricity in fig. 6, the realization shows the load, it can be seen that the eccentricity gradually decreases with the increase of the load, the fluctuation amplitude of the eccentricity in fig. 6 is larger, the load also follows the fluctuation of the eccentricity to some extent, the initial load of the eccentricity is lowered, which means that the initial crack is generated at the angle R at one end, and after the larger fluctuation of the eccentricity, the load is lowered for the second time after the fluctuation of the larger fluctuation of the eccentricity, the initial crack is generated at the angle R at the other end, and then the eccentricity is continuously reduced and continuously fluctuates until the load suddenly descends, which means that the final failure is generated at the joint; the analysis shows that the maximum value of the load is less than 70kN, which indicates that the failure mode is a small-range crack propagation mode, the failure time is longer, and longer alarm preparation time can be provided for the structure, but the structure is not suitable for bearing a large-load connection structure; to verify the eccentricity versus failure mode, as shown in fig. 7, which is a load/eccentricity-displacement graph of the joint R angle of the sandwich eccentric structure in the same structural form but with the addition of a row of rivets, it can be determined that the failure mode is the second, widely spread mode, as can be seen by comparing the graph with fig. 6, where the eccentricity fluctuation amplitude is small and the interval between two drops of load is short, but the loadable load is higher than that of a single row of rivets, reaching approximately 110 kN; through the display of the simulation diagram, the R-angle failure mode can be clearly obtained, and then the designer can conveniently conduct the pre-judgment and selection of the R-angle failure mode according to the requirements.
In the embodiment, the R angle of the joint of the sandwich eccentric structure is modeled, simulated and analyzed, a load/eccentricity-displacement curve is output, and according to the load/eccentricity-displacement curve and the fluctuation condition of the monitoring point, the R angle failure mode is analyzed to be in positive correlation with the eccentricity fluctuation, so that the control of different failure modes is realized by changing the fluctuation condition of the eccentricity, and an executable scheme is provided for the control of the R angle failure mode of the joint of the sandwich eccentric structure.
In the embodiment of the invention, the connection structure of the simulation model of the sandwich eccentric structure has various forms, and can be cementing, mechanical connection or mixed connection, wherein the mixed connection is a mixed form of cementing and mechanical connection. By the arrangement, simulation can be performed according to different connection structure forms, so that the applicability of the method is improved.
In the embodiment of the invention, when the simulation model of the sandwich eccentric structure is a hybrid connection, wherein the adhesive layer uses a cohesive force model to simulate deformation and damage failure of the adhesive layer, and the mechanical connection uses a solid unit for modeling, the mechanical connection can be a screw, a bolt or a rivet, and the material of the mechanical connection comprises an elastic part and a plastic part.
In the embodiment of the invention, the calculation method of the simulated tensile test is to display the quasi-static tensile of the dynamic simulated joint. When the simulation model is subjected to stretching model constraint, constraint conditions are that one side is fixed and all degrees of freedom are constrained, and the other side only releases the free end in the stretching direction. The stretching adopts coupling constraint, the constraint area is an actual clamping area of a stretching end, and the constraint reference point is positioned on an axial line of the stretching direction of the joint. When the simulation model is subjected to a simulation tensile test, the friction coefficient is set according to the actual setting, and the load is loaded through a smooth curve. By the arrangement of the stretching simulation mode, the result of the simulation stretching test is more similar to the actual stretching test result, and the authenticity and reliability of the simulation test are further improved.
In the embodiment of the invention, the displacement of the monitoring point is processed through the middle area of the displacement monitoring point in the length direction of the joint, and the displacement of the monitoring point is converted into the eccentric distance. The specific conversion mode is that the real-time eccentric distance=original eccentric distance-real-time displacement, wherein the original eccentric distance refers to the eccentric distance before stretching, and the real-time displacement is obtained through monitoring of monitoring points.
In the embodiment of the invention, the eccentricity fluctuation is evaluated by adopting a calculation mode of dividing the eccentricity fluctuation range by the joint span, wherein the specific evaluation mode is that when the eccentricity fluctuation range divided by the joint span is less than 0.5%, the fluctuation range is small, and otherwise, the fluctuation range is large. By judging in this way, the method can be used for joints with various spans, and the applicability of judging the R angle failure mode of the joint with the sandwich eccentric structure is improved. Specifically, in the embodiment of the present invention, the control method of the R-angle failure mode is as follows: if a high load bearing joint is required, reinforcing the connection of the rivet or the glue layer so that the eccentricity fluctuation amplitude divided by the joint span is less than 0.5%; if it is desired that the joint is still able to continue to bear after the initiation of the crack, the rivet or bond line connection is weakened such that the eccentricity fluctuation amplitude divided by the joint span is not less than 0.5%.
In the above embodiment of the present invention, the final failure mode of the R-angle is controlled by changing the eccentricity vibration amplitude after the initial crack is generated in the R-angle, and the judgment of the two failure modes is realized by the eccentricity vibration amplitude; the control method has great significance for controlling the final failure mode of the chuck with the sandwich eccentric structure.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The control method for the R-angle failure mode of the joint of the sandwich eccentric structure is characterized by comprising the following steps of:
Establishing a simulation model of the sandwich eccentric structure joint, carrying out tensile model constraint on the simulation model, and setting displacement monitoring points;
carrying out actual tensile test on the sandwich eccentric structure to obtain a load-displacement curve and a failure mode in the joint stretching process;
Carrying out a simulation tensile test on the simulation model, obtaining a load-displacement curve of the simulation tensile test and analyzing a joint failure mode;
Comparing and analyzing simulation and test results, and verifying the accuracy of a simulation model or correcting the simulation model;
Converting the displacement of the monitoring point into eccentricity based on an accurate simulation result, outputting a load/eccentricity-displacement curve, and controlling the failure mode of the joint R angle by controlling the fluctuation amplitude of the eccentricity;
The eccentricity fluctuation amplitude is evaluated by adopting a calculation mode of dividing the eccentricity fluctuation amplitude by the joint span, and when the eccentricity fluctuation amplitude is less than 0.5% by dividing the joint span, the fluctuation amplitude is small, otherwise, the fluctuation amplitude is large;
The control method of the R angle failure mode comprises the following steps: if a high load bearing joint is required, reinforcing the connection of the rivet or the glue layer so that the eccentricity fluctuation amplitude divided by the joint span is less than 0.5%; if it is desired that the joint is still able to continue to bear after the initiation of the crack, the rivet or bond line connection is weakened such that the eccentricity fluctuation amplitude divided by the joint span is not less than 0.5%.
2. The method of claim 1, wherein the simulation model of the sandwich eccentric structure is a glue joint, a mechanical joint or a hybrid joint, and the hybrid joint is a hybrid of glue joint and mechanical joint.
3. The method according to claim 2, wherein the simulation model of the sandwich eccentric structure is a hybrid connection, wherein the adhesive layer is modeled using a cohesive force model to simulate deformation and damage failure of the adhesive layer, and the mechanical connection is modeled using a solid unit.
4. The method of claim 1, wherein the simulated tensile test is calculated as a quasi-static tensile of the simulated dynamic joint.
5. The method for controlling the failure mode of the R angle of the joint of the sandwich eccentric structure according to claim 1, wherein when the simulation model is subjected to the constraint of the stretching model, the constraint condition is that one side is fixed and all degrees of freedom are constrained, and the other side only releases the free end in the stretching direction.
6. The method for controlling the failure mode of the R angle of the joint with the sandwich eccentric structure according to claim 5, wherein when a simulation tensile test is carried out on a simulation model, coupling constraint is adopted for stretching, a constraint area is an actual clamping area of a stretching end, and a constraint reference point is positioned on an axial line of the stretching direction of the joint.
7. The method for controlling the failure mode of the R angle of the joint with the sandwich eccentric structure according to claim 5, wherein the friction coefficient is set according to the actual condition and the load is loaded through a smooth curve when the simulation model is subjected to the simulation tensile test.
8. The method for controlling the failure mode of the R angle of the joint of the sandwich eccentric structure according to claim 1, wherein the displacement monitoring point is positioned in a middle area in the length direction of the joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211526390.7A CN115828459B (en) | 2022-11-30 | 2022-11-30 | R-angle failure mode control method for joint of sandwich eccentric structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211526390.7A CN115828459B (en) | 2022-11-30 | 2022-11-30 | R-angle failure mode control method for joint of sandwich eccentric structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115828459A CN115828459A (en) | 2023-03-21 |
| CN115828459B true CN115828459B (en) | 2024-04-30 |
Family
ID=85533356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211526390.7A Active CN115828459B (en) | 2022-11-30 | 2022-11-30 | R-angle failure mode control method for joint of sandwich eccentric structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115828459B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107273560A (en) * | 2016-12-26 | 2017-10-20 | 中国船舶工业集团公司第七0八研究所 | A kind of Loading End contracting curve for the vertical bone multispan unstability for considering lateral load effect determines method |
| CN112557194A (en) * | 2020-12-09 | 2021-03-26 | 一汽奔腾轿车有限公司 | Development method of high-precision simulation model of metal material |
| CN113515832A (en) * | 2020-04-09 | 2021-10-19 | 广州汽车集团股份有限公司 | Welding spot failure simulation method and device and storage medium |
| CN114496124A (en) * | 2022-01-29 | 2022-05-13 | 本钢板材股份有限公司 | Method for measuring parameters of GISSMO material failure model under high-speed working condition |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9939359B2 (en) * | 2014-09-25 | 2018-04-10 | East China University Of Science And Technology | Method of measurement and determination on fracture toughness of structural materials at high temperature |
-
2022
- 2022-11-30 CN CN202211526390.7A patent/CN115828459B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107273560A (en) * | 2016-12-26 | 2017-10-20 | 中国船舶工业集团公司第七0八研究所 | A kind of Loading End contracting curve for the vertical bone multispan unstability for considering lateral load effect determines method |
| CN113515832A (en) * | 2020-04-09 | 2021-10-19 | 广州汽车集团股份有限公司 | Welding spot failure simulation method and device and storage medium |
| CN112557194A (en) * | 2020-12-09 | 2021-03-26 | 一汽奔腾轿车有限公司 | Development method of high-precision simulation model of metal material |
| CN114496124A (en) * | 2022-01-29 | 2022-05-13 | 本钢板材股份有限公司 | Method for measuring parameters of GISSMO material failure model under high-speed working condition |
Non-Patent Citations (3)
| Title |
|---|
| 新型空间可展单簧片结构屈曲分析;叶红玲;赵春华;肖燕妮;姚旗;;强度与环境(第02期);全文 * |
| 碳纤维/环氧树脂复合材料缠绕接头拉伸失效机制;郭丽君;陆方舟;李想;蔡登安;张庆茂;陈建农;刘伟先;周光明;;复合材料学报(第09期);全文 * |
| 碳纤维复合材料FJF胶接接头失效仿真研究;许昶;刘志明;;计算机仿真(第01期);第199-205页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115828459A (en) | 2023-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Bolted glulam beam-column connections under different combinations of shear and bending | |
| Santos | Higher capacity cold-formed steel sheathed and framed shear walls for mid-rise buildings: Part 1 | |
| Sun et al. | Hysteretic behavior and simplified simulation method of high-strength steel end-plate connections under cyclic loading | |
| CN110793853B (en) | Tension-torsion steady-state cyclic stress-strain modeling method based on basic mechanical parameters | |
| Liu et al. | Lateral performance of a semi-rigid timber frame structure: theoretical analysis and experimental study | |
| CN206270187U (en) | A kind of drag-line fatigue tester | |
| CN115828459B (en) | R-angle failure mode control method for joint of sandwich eccentric structure | |
| Shi et al. | Bolted steel to laminated timber and glubam connections: Axial behavior and finite-element modeling | |
| Mahendran | Applications of finite element analysis in structural engineering | |
| Palma et al. | Dowelled timber connections with internal members of densified veneer wood and fibre-reinforced polymer dowels | |
| Zhang et al. | Tests of cold‐formed steel portal frames with slender sections | |
| Pisarek et al. | End-plate steel joint with four bolts in the row | |
| CN115544833A (en) | Method for evaluating impact damage repair scheme of composite material honeycomb sandwich panel | |
| Wu | Performance of centre-sheathed cold-formed steel framed shear walls phase 2 | |
| Hu et al. | Analytical studies of full-scale steel T-stub connections using delicate 3D finite element methods | |
| Sheikhtabaghi | Continuity connection for cross laminated timber (CLT) floor diaphragms | |
| CN111651881B (en) | Method for simplifying lock riveting simulation failure parameters | |
| Chong et al. | Hybrid test of precast concrete frame with energy-dissipation cladding panel system | |
| CN116956448B (en) | Design method of U-shaped beam falling prevention device for bridge | |
| Zhou et al. | Finite element modelling of stainless steel shear connectors in composite beams | |
| CN112100873A (en) | Method for determining bearing capacity of hydraulic building | |
| Bompa et al. | Disassembly and Structural Reuse Potential of Steel-Timber Shear Connections with Screws | |
| Rong et al. | Studies on performance and failure mode of T-shaped diaphragm-through connection under monotonic and cyclic loading | |
| Balaskas et al. | Experimental numerical investigation of innovative ductile and replaceable anchoring systems for wood shear walls under seismic loads | |
| Thelin et al. | Glued-in rods in timber structures-Finite element analyses of adhesive failure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |