%0 Journal Article %1 liu2015improved %A Liu, Mingchao %A Gan, Yixiang %A Hanaor, Dorian AH %A Liu, Bin %A Chen, Changqing %D 2015 %I Elsevier %J Engineering fracture mechanics %K cracks fracture mechanics notch porous %P 134--143 %R 10.1016/j.engfracmech.2015.10.004 %T An improved semi-analytical solution for stress at round-tip notches %U https://www.sciencedirect.com/science/article/pii/S0013794415005834 %V 149 %X In order to investigate the brittle failure of key-hole-notched components, the stress distribution at notch tips is studied numerically and theoretically. A semi-analytical formula is developed for the maximum notch-tip-stress, incorporating crack-tip-blunting, stress-concentration and stress-equilibrium. Stress distributions in notched plates are simulated by the finite-element method, showing improved accuracy of the formula relative to established solutions. Application of the developed equation to components containing U-notches and blunt V-notches, is explored, demonstrating its broad applicability. When combined with stress-based failure criteria, the semi-analytical model can be employed to assess brittle failure in notched components with significance toward fracture in heterogeneous materials.

@article{liu2015improved, abstract = {In order to investigate the brittle failure of key-hole-notched components, the stress distribution at notch tips is studied numerically and theoretically. A semi-analytical formula is developed for the maximum notch-tip-stress, incorporating crack-tip-blunting, stress-concentration and stress-equilibrium. Stress distributions in notched plates are simulated by the finite-element method, showing improved accuracy of the formula relative to established solutions. Application of the developed equation to components containing U-notches and blunt V-notches, is explored, demonstrating its broad applicability. When combined with stress-based failure criteria, the semi-analytical model can be employed to assess brittle failure in notched components with significance toward fracture in heterogeneous materials.}, added-at = {2019-08-31T23:19:54.000+0200}, author = {Liu, Mingchao and Gan, Yixiang and Hanaor, Dorian AH and Liu, Bin and Chen, Changqing}, biburl = {https://www.bibsonomy.org/bibtex/264ac01fd22cb2af44492ac6bbdcc7caf/dohan}, doi = {10.1016/j.engfracmech.2015.10.004}, interhash = {1c550e7f7d7fa0c7935a02f67302da98}, intrahash = {64ac01fd22cb2af44492ac6bbdcc7caf}, journal = {Engineering fracture mechanics}, keywords = {cracks fracture mechanics notch porous}, pages = {134--143}, publisher = {Elsevier}, timestamp = {2019-08-31T23:19:54.000+0200}, title = {An improved semi-analytical solution for stress at round-tip notches}, url = {https://www.sciencedirect.com/science/article/pii/S0013794415005834}, volume = 149, year = 2015 }