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| Title: | Effect of temperature on stresses and delamination failure of z-pinned joints |
| Author (s): | Byrd, Larry W. Birman, Victor |
| Department/Lab Affiliations: | Center for Infrastructure Engineering Studies Engineering Education Center at St. Louis |
| Keywords: | composite joints fracture z-pins |
| Subject Terms: | Residual stresses. Temperature. |
| Issue Date: | 2006 |
| Publisher: | Elsevier |
| Citation: | Byrd, Larry W. and Victor Birman. "Effect of temperature on stresses and delamination failure of z-pinned joints", International Journal of Mechanical Sciences 48(9) (September 2006): 938-949. |
| Abstract: | Although z-pins have been shown effective in preventing delaminations in adhesively bonded and co-cured joints, their applicability depends on a reliable assessment of the strength of a z-pin-composite assembly. In particular, high residual thermal stresses that have been found in experiments dictate the necessity in a local stress analysis. Elevated temperature applied to the joint during its lifetime may also affect its effectiveness in preventing delaminations. The present paper illustrates an approach to determining local residual stresses confirming the observations regarding a possible delamination and cracking in the composite structure due to high post-processing transverse stresses. The analysis of the effect of elevated temperature applied at one of the surfaces on the response of a z-pinned joint is conducted using the concept of a double cantilever beam with an “insulated” crack. In addition, it is illustrated that an elevated temperature may actually benefit the integrity of the joint if it causes an increase in the z-pin-composite interfacial strength. |
| Type: | Article - Journal text |
| In Title: | International Journal of Mechanical Sciences |
| Copyright Notice: | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. Pre-print: author can archive; Post-print: author can archive; FULL COPYRIGHT INFORMATION: |
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| Link to this page: |
| title | Effect of temperature on stresses and delamination failure of z-pinned joints |
| contributor.author | Byrd, Larry W. |
| contributor.author | Birman, Victor |
| contributor.deptlab | Center for Infrastructure Engineering Studies |
| contributor.deptlab | Engineering Education Center at St. Louis |
| contributor.sponsor | Air Force Office of Scientific Research |
| subject | composite joints |
| subject | fracture |
| subject | z-pins |
| subject.LCSH | Residual stresses. |
| subject.LCSH | Temperature. |
| date.issued | 2006 |
| publisher | Elsevier |
| identifier.citation | Byrd, Larry W. and Victor Birman. "Effect of temperature on stresses and delamination failure of z-pinned joints", International Journal of Mechanical Sciences 48(9) (September 2006): 938-949. |
| identifier.pub.URI | |
| description.abstract | Although z-pins have been shown effective in preventing delaminations in adhesively bonded and co-cured joints, their applicability depends on a reliable assessment of the strength of a z-pin-composite assembly. In particular, high residual thermal stresses that have been found in experiments dictate the necessity in a local stress analysis. Elevated temperature applied to the joint during its lifetime may also affect its effectiveness in preventing delaminations. The present paper illustrates an approach to determining local residual stresses confirming the observations regarding a possible delamination and cracking in the composite structure due to high post-processing transverse stresses. The analysis of the effect of elevated temperature applied at one of the surfaces on the response of a z-pinned joint is conducted using the concept of a double cantilever beam with an “insulated” crack. In addition, it is illustrated that an elevated temperature may actually benefit the integrity of the joint if it causes an increase in the z-pin-composite interfacial strength. |
| type | Article - Journal |
| type.DCMIType | text |
| type.status | Postprint |
| rights | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
| rights | Pre-print: author can archive; Post-print: author can archive; |
| rights.URI | |
| relation.isPartOf | International Journal of Mechanical Sciences |
| date.available | 2008-09-26T20:16:47Z |
| identifier.persist.URI |