http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
인공관절 라이너의 내마모성 향상을 위한 UHMWPE의 감마선 조사량에 따른 기계적 특성 변화
김현묵(H. M. Kim),김동훈(D. H. Kim),황창선(C. S. Hwang),김성곤(S. K. Kim),윤호현(H. Y. Yoon),이종대(J. D. Lee) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Uniaxial tension and compression test were conducted on conventional and crosslinked ultra-high molecular polyethylene(UHMWPE) all prepared from the same lot of medical grade GUR 1050. The conventional materials were unirradiated and gamma irradiated with 25kGy~200kGy. Gamma irradiated processing was found to significantly impact the crystallinity, and hence the mechanical behavior, of the highly crosslinked UHMWPE. The crystallinity and radiation dose were key predictors of the uniaxial yielding, plastic flow, and failure properties of conventional and highly crosslinked UHMWPE. The correlation model from experiments would be the basic information to design the liner of artificial joint.
비드 블라스트 표면처리를 이용한 척추고정시스템의 피로저항 향상
김현묵(H. M. Kim),황창선(C. S. Hwang),김동훈(D. H. Kim),김성곤(S. K. Kim),문찬삼(C. S. Moon),이종대(J. D. Lee) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Spinal fixation systems provide surgical versatility, but the complexity of their design may reduce their strength and fatigue resistance. There is no published data on the mechanical properties of such screws. Screws were assembled according to a vertebrectomy model for destructive mechanical testing. Group of two assemblies were tested in static compression. One had been finished the surface by grit blast treatment, the other had been finished the surface by bead blast. Modes of failure, yield, and ultimate strength, yield stiffness, and cycles to failure were determined for six assembles. Static compression 2% offset yield loads ranges from 327 to 419N. Fatigue loads were determined two level, 50% and 75% of the average load from static compression yield load. The assembly of bead blast treatment only achieved 5 million cycles at 275N in compression bending.
인공관절 라이너의 내마모성 향상을 위한 초고분자량 폴리에틸렌의 감마선 조사에 따른 경도변화
김현묵(H. M. Kim),김동훈(D. H. Kim),황창선(C. S. Hwang),김성곤(S. K. Kim),손원용(W. Y. Shon),이종대(J. D. Lee) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Rockwell hardness test was conducted on conventional and crosslinked ultra-high molecular polyethylene(UHMWPE) all prepared from the same lot of medical grade GUR 1050. The conventional materials were unirradiated and gamma irradiated with 25kGy~200kGy. Gamma irradiated processing was found to significantly impact the crystallinity, and hence the mechanical behavior, of the highly crosslinked UHMWPE. The crystallinity and radiation dose were key predictors of the hardness, plastic flow, and failure properties of conventional and highly crosslinked UHMWPE. The correlation model from experiments would be the basic information to design the liner of artificial joint.