主题：【求助】（已应助）求助三篇英文文献，谢谢

【序号】：1
【作者】： R. H. Dauskardt, R. O. Ritchie, J. K. Takemoto, A. M. Brendzel
【题名】： Cyclic fatigue and fracture in pyrolytic carbon-coated graphite mechanical heart-valve prostheses: Role of small cracks in life prediction
【期刊】： Journal of Biomedical Materials Research
【年、卷、期】： Volume 28 Issue 7, Pages 791 - 804

【序号】： 2
【作者】： R. O. Ritchie, R. H. Dauskardt, Weikang Yu, A. M. Brendzel
【题名】： Cyclic fatigue-crack propagation, stress-corrosion, and fracture-toughness behavior in pyrolytic carbon-coated graphite for prosthetic heart valve applications
【期刊】：Journal of Biomedical Materials Research
【年、卷、期】： Volume 24 Issue 2, Pages 189 - 206

【序号】： 3
【作者】： Q. Y. Wang , J. Y. Berard , S. Rathery & C. Bathias
【题名】： Technical note High-cycle fatigue crack initiation and propagation behaviour of high-strength sprin steel wires
【期刊】： Fatigue & Fracture of Engineering Materials & Structures
【年、卷、期】： Volume 22 Issue 8, Pages 673 - 677