CA2242050A1 - Composite honeycomb sandwich structure - Google Patents

Composite honeycomb sandwich structure

Info

Publication number
CA2242050A1
CA2242050A1 CA002242050A CA2242050A CA2242050A1 CA 2242050 A1 CA2242050 A1 CA 2242050A1 CA 002242050 A CA002242050 A CA 002242050A CA 2242050 A CA2242050 A CA 2242050A CA 2242050 A1 CA2242050 A1 CA 2242050A1
Authority
CA
Canada
Prior art keywords
mandrel
plies
sandwich structure
composite
film adhesive
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.)
Granted
Application number
CA002242050A
Other languages
French (fr)
Other versions
CA2242050C (en
Inventor
Dale E. Hartz
William B. Hopkins
Christopher L. Pederson
David G. Erickson
Darrell H. Corbett
Stuart A. Smith
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.)
Boeing Co
Original Assignee
Individual
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
Priority claimed from US08/587,160 external-priority patent/US5604010A/en
Priority claimed from US08/616,903 external-priority patent/US5895699A/en
Priority claimed from US08/620,829 external-priority patent/US5685940A/en
Application filed by Individual filed Critical Individual
Priority claimed from PCT/US1997/000075 external-priority patent/WO1997025198A1/en
Publication of CA2242050A1 publication Critical patent/CA2242050A1/en
Application granted granted Critical
Publication of CA2242050C publication Critical patent/CA2242050C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

We eliminate resin flow into the cells of honeycomb in sandwich structure by using an unsupported film adhesive (108), a barrier layer (110), and a scrim supported adhesive layer (112) between the composite laminate (102) and the core (106). We produce superior panels with lighter weights, improved mechanical properties, and more predictable structural performance by keeping resin in the laminate rather than losing it to the core cells. We reduce core crush and ply wrinkling in composite honeycomb sandwich structure by preventing slipping of tiedown plies relative to the mandrel and to one another during autoclave curing. We produce superior panels with lighter weights, improved mechanical properties, and more predictable structural performance. The method involves applying a film adhesive to the tiedown plies in the margin of the part outside the net trim line. During heating of the autoclave and prior to the application of high pressure to the composite structure, the film adhesive cures to form a strong bond between the plies and to the mandrel. When pressure is applied, the tiedown plies are locked together and to the mandrel to prevent slippage between any layers in the panel.
CA002242050A 1996-01-11 1997-01-06 Composite honeycomb sandwich structure Expired - Lifetime CA2242050C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US08/587,160 US5604010A (en) 1996-01-11 1996-01-11 Composite honeycomb sandwich structure
US08/616,903 US5895699A (en) 1996-03-15 1996-03-15 Tiedown ply for reducing core crush in composite honeycomb sandwich structure
US08/616,903 1996-03-20
US08/620,829 1996-03-20
US08/587,160 1996-03-20
US08/620,829 US5685940A (en) 1996-03-20 1996-03-20 Adhering tiedown plies in composite construction
PCT/US1997/000075 WO1997025198A1 (en) 1996-01-11 1997-01-06 Composite honeycomb sandwich structure

Publications (2)

Publication Number Publication Date
CA2242050A1 true CA2242050A1 (en) 1997-07-17
CA2242050C CA2242050C (en) 2007-05-15

Family

ID=38069035

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002242050A Expired - Lifetime CA2242050C (en) 1996-01-11 1997-01-06 Composite honeycomb sandwich structure

Country Status (1)

Country Link
CA (1) CA2242050C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107139503B (en) * 2017-01-20 2019-03-19 西南电子技术研究所（中国电子科技集团公司第十研究所） The forming method of composite material cylinder component partial honeycomb sandwich construction

Also Published As

Publication number Publication date
CA2242050C (en) 2007-05-15

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20170106