2015 EJRNL PP Qinghua Meng1.pdf
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Terbatas Irwan Sofiyan
» ITB
Terbatas Irwan Sofiyan
» ITB
An asymptotic analysis is made on problems with a steady-state crack growth cou-
pled with a creep law model under tensile loads. Asymptotic equations of crack tip fields in creep
materials are derived and solved numerically under small scale conditions. Stress and strain func-
tions are adopted under a polar coordinate system. The governing equations of asymptotic fields
are obtained by inserting the stress field and strain field into the material law. The crack growth
rate rather than fracture criterion plays an important role in the crack tip fields of materials with
creep behavior.