JPS5815139A - Testing method of mechanical strength - Google Patents

Testing method of mechanical strength

Info

Publication number
JPS5815139A
JPS5815139A JP11389581A JP11389581A JPS5815139A JP S5815139 A JPS5815139 A JP S5815139A JP 11389581 A JP11389581 A JP 11389581A JP 11389581 A JP11389581 A JP 11389581A JP S5815139 A JPS5815139 A JP S5815139A
Authority
JP
Japan
Prior art keywords
mechanical strength
sample
unknown
stress
unknown material
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.)
Pending
Application number
JP11389581A
Other languages
Japanese (ja)
Inventor
Fumiyoshi Matsumura
松村　文好
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11389581A priority Critical patent/JPS5815139A/en
Publication of JPS5815139A publication Critical patent/JPS5815139A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE:To easily obtain an approximate value of mechanical strength, by putting force on that which has made and unknown material adhere to a material whose mechanical strength is known, and measuring its distortion, in a method for testing the mechanical strength of an unknown material. CONSTITUTION:A material 2 whose mechanical strength is known, and an unknown material 1 are made to adhere to each other, by which a sample is prepared. To this sample, a load is put on a force point 5 by making a supporting point 4. When the stress-distortion characteristics are measured, the material 1 generates a remarkable deformation when a value of stress has exceeded (a) by a difference of mechanical strength between the materials 1, 2. As a result, mechanical strength of the unknown material 1 can be grasped. As for a compound and a mixture, the number of data is a few since a mechanical quality is different depending on a component ratio, a manufacturing process, a condtion, etc., but it is possible to easily obtain an approximate value of mechanical strength as to them.

Description

【発明の詳細な説明】 本発明は１機械的性質の不明確な材料に関して、容易に
その強度を調べる方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for easily examining the strength of a material whose mechanical properties are unclear.

物質の機械的性質については、単一元素によ〕構成され
ている場合は、すでに多くのデータが得られているが、
化合物、混合物に関しては成分比、製法１条件等によ多
異なるために、データは少い。Regarding the mechanical properties of substances, a lot of data has already been obtained when they are composed of a single element.
There is little data regarding compounds and mixtures because they vary depending on component ratios, manufacturing method conditions, etc.

本発明はこれらの場合に関して１機械的強度の概略値を
与えるもので、試料は実用的な形状に於ても測定が可能
である。The present invention provides an approximate value of mechanical strength in these cases, and measurements can be made even when the sample has a practical shape.

本発明は、比較となる既知材料に１強度を求めようとす
る未知の材料を接着し、既知の材料に力を加えた場合、
そのひずみは、両者の応力特性によりて強度の低い方の
物質の弾性限界をこえると。In the present invention, when an unknown material whose strength is to be determined is bonded to a known material for comparison, and force is applied to the known material,
The strain exceeds the elastic limit of the material with the lower strength due to the stress characteristics of both materials.

異った表れ方を示す、この結果を用いて、未知の材料の
機械的強度を調べることが出来る。The results, which show different manifestations, can be used to investigate the mechanical strength of unknown materials.

以下、図面を参照して１本発明をより詳細に説明する。Hereinafter, the present invention will be explained in more detail with reference to the drawings.

第１図に試験方法を示すように、既知の材料を２、未知
の材料を１とし、これらを互いに接着して試料を作成し
、この試料の接着部を３とする。As shown in the test method in FIG. 1, a known material is designated as 2 and an unknown material is designated as 1, and these are adhered to each other to create a sample, and the bonded portion of this sample is designated as 3.

この試料に支点を４として力点５に荷重を加える。A load is applied to this sample at a force point 5 with the fulcrum at 4.

支点４は既知の材料２１ＪＡでも未知の材料１側でもよ
いが、既知の材料２側の方が測定しやすい。The fulcrum 4 may be on the known material 21JA or the unknown material 1 side, but the known material 2 side is easier to measure.

力点５に荷重を加えた場合、第２図に示す応力−ひすみ
特性が得られるが、材料１．２の機械的強度の差によっ
て、応力Ｑ４ｉ１Ｆ＄＠を越すと、材料ｌは著しい変形
を生ずる。When a load is applied to the force point 5, the stress-strain characteristics shown in Fig. 2 are obtained, but due to the difference in mechanical strength of the material 1.2, when the stress Q4i1F$@ is exceeded, the material 1 undergoes significant deformation. arise.

第３図の（ａ）％　（ｂ）はこの応力ひずみの状態の一
例を示したもので、同図（峙は材料１．２共に弾性限度
内であり、両者共に応力−ひずみの関係Ｆｉｌ定である
。同図（ｂ）は未知の材料１がその弾性限度龜を越した
場合のひずみ特性で領域７において、著しい応力集中の
あることがわかる。この結果によって、未知の材料の機
械強度を知ることが出来る。Figure 3 (a) and % (b) show an example of this stress-strain state. Figure (b) shows the strain characteristics of unknown material 1 when its elastic limit is exceeded, and it can be seen that there is a significant stress concentration in region 7. From this result, it is possible to estimate the mechanical strength of unknown material. I can know.

【図面の簡単な説明】[Brief explanation of drawings]

ｌ！１図は本発明の１実施例を説明するための試料の断
面図、第２図その応力−ひずみ関係図である。第３図（
ａ）、　（ｂ）は第１図に示した試料に荷重を加えた時
の平面ひずみを示し要因でｂる。 １−・・調べようとする材料、２・・・既知の材料％３
・・・試料の接着面％４−・試料に加を加える時の支点
、５−・試料に加を加える時の力点、６−・・力を加え
ること罠よって生じる等ひずみ量線、７・・・材料１の
弾性限界をこしたために生じた不連続ひずみ領域。l! FIG. 1 is a sectional view of a sample for explaining one embodiment of the present invention, and FIG. 2 is a stress-strain relationship diagram thereof. Figure 3 (
Figures a) and (b) show the plane strain when a load is applied to the sample shown in Figure 1, which is determined by factors. 1-...Material to be investigated, 2...Known material%3
...Adhesive surface % of the sample 4--Fully point when applying force to the sample, 5--Point of force when applying force to the sample, 6--Equivalent strain amount line caused by applying force, 7- ...Discontinuous strain region caused by exceeding the elastic limit of material 1.

Claims (1)

【特許請求の範囲】[Claims] 機械強度が既知の材料と未知の材料とを接着して、接着
して得られた試料に力を加え、ひずみを調べることを特
徴とする機械強度の試験方法。A mechanical strength testing method that involves bonding a material with known mechanical strength and a material with unknown mechanical strength, applying force to the sample obtained by bonding, and examining the strain.
JP11389581A 1981-07-21 1981-07-21 Testing method of mechanical strength Pending JPS5815139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11389581A JPS5815139A (en) 1981-07-21 1981-07-21 Testing method of mechanical strength

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11389581A JPS5815139A (en) 1981-07-21 1981-07-21 Testing method of mechanical strength

Publications (1)

Publication Number Publication Date
JPS5815139A true JPS5815139A (en) 1983-01-28

Family

ID=14623829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11389581A Pending JPS5815139A (en) 1981-07-21 1981-07-21 Testing method of mechanical strength

Country Status (1)

Country Link
JP (1) JPS5815139A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2766529A1 (en) 1997-06-06 1999-01-29 Hard Lock Kogyo Co Self-restraining nut
CN105403471A (en) * 2015-12-22 2016-03-16 广东中德电缆有限公司 Cable softness tester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2766529A1 (en) 1997-06-06 1999-01-29 Hard Lock Kogyo Co Self-restraining nut
CN105403471A (en) * 2015-12-22 2016-03-16 广东中德电缆有限公司 Cable softness tester

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