| contributor author | Alain C. Nussbaumer | |
| contributor author | John W. Fisher | |
| contributor author | Robert J. Dexter | |
| date accessioned | 2017-05-08T20:57:17Z | |
| date available | 2017-05-08T20:57:17Z | |
| date copyright | November 1999 | |
| date issued | 1999 | |
| identifier other | %28asce%290733-9445%281999%29125%3A11%281232%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/33095 | |
| description abstract | The propagation of long cracks under constant-amplitude cyclic loading is studied in complex welded box beams made of high-strength low-alloy steel. The 8 × 1 × 0.7 m box beams were designed to simulate the cellular structure of a double-hull ship but the results of the experiments are equally applicable to other box systems such as bridges. These experiments were designed to evaluate the residual fatigue life after a significant fatigue crack has formed. After testing, residual stresses were measured on two box beams using the standardized strain-gauge hole-drilling method. The experiment results demonstrated the good crack tolerance of cellular structures. The residual life of a box beam (after a welded detail has failed) was significant. The crack-driving force was evaluated using finite-element modeling. Reasonable correlation between these large-scale tests and the fatigue crack growth rate from small compact specimens was obtained only with models that included the effects of crack closure due to residual stresses. Linear-elastic fracture mechanics proved to be sufficient to predict the behavior of long cracks in this case. | |
| publisher | American Society of Civil Engineers | |
| title | Behavior of Long Fatigue Cracks in Cellular Box Beam | |
| type | Journal Paper | |
| journal volume | 125 | |
| journal issue | 11 | |
| journal title | Journal of Structural Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9445(1999)125:11(1232) | |
| tree | Journal of Structural Engineering:;1999:;Volume ( 125 ):;issue: 011 | |
| contenttype | Fulltext | |
