A complete solution to generally orthotropic DCBS with shear deformation and crack-tip rotation consideration

D. S. Ling, W. Q. Chen, Qingda Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, a complete solution to the fracture problem of double cantilever beams (DCBs) made of generally orthotropic materials under transverse shear loading has been derived with full consideration of the effects of shear deformation and crack-tip rotation. The solution set, which includes analytical expressions for energy release rate (ERR) calculation, fracture load and displacement as functions of material orthotropy and crack length, is applicable to all practical orthotropic materials and is accurate for both long and short beams. Using the derived analytical expressions, the compliance method for determining fracture toughness has been re-examined. An important finding is that the effective crack length for computing ERR cannot be used without modification for computing specimen compliance. An expression for the effective crack length that can be used for assessing specimen compliance has been derived. The expression is within 3% of uncertainty for practical orthotropic DCBs with both short and long crack.

Original languageEnglish
Title of host publicationInternational SAMPE Symposium and Exhibition (Proceedings)
StatePublished - Dec 2 2010
EventSAMPE 2010 Conference and Exhibition "New Materials and Processes for a New Economy" - Seattle, WA, United States
Duration: May 17 2010May 20 2010

Other

OtherSAMPE 2010 Conference and Exhibition "New Materials and Processes for a New Economy"
CountryUnited States
CitySeattle, WA
Period5/17/105/20/10

Fingerprint

Crack tips
Shear deformation
Cracks
Energy release rate
Cantilever beams
Fracture toughness
Compliance

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Ling, D. S., Chen, W. Q., & Yang, Q. (2010). A complete solution to generally orthotropic DCBS with shear deformation and crack-tip rotation consideration. In International SAMPE Symposium and Exhibition (Proceedings)

A complete solution to generally orthotropic DCBS with shear deformation and crack-tip rotation consideration. / Ling, D. S.; Chen, W. Q.; Yang, Qingda.

International SAMPE Symposium and Exhibition (Proceedings). 2010.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ling, DS, Chen, WQ & Yang, Q 2010, A complete solution to generally orthotropic DCBS with shear deformation and crack-tip rotation consideration. in International SAMPE Symposium and Exhibition (Proceedings). SAMPE 2010 Conference and Exhibition "New Materials and Processes for a New Economy", Seattle, WA, United States, 5/17/10.
Ling DS, Chen WQ, Yang Q. A complete solution to generally orthotropic DCBS with shear deformation and crack-tip rotation consideration. In International SAMPE Symposium and Exhibition (Proceedings). 2010
Ling, D. S. ; Chen, W. Q. ; Yang, Qingda. / A complete solution to generally orthotropic DCBS with shear deformation and crack-tip rotation consideration. International SAMPE Symposium and Exhibition (Proceedings). 2010.
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