인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
A comparative analysis of three transversely isotropic hyperelastic constitutive laws is presented to characterize the mechanical behavior of spinal ligaments within finite element simulations. In each material model, the total strain energy is partitioned into ground‑matrix and fiber contributions. The ground‑matrix response was represented by three strain‑energy functions, Neo‑Hookean, Mooney‑Rivlin, and Yeoh, whereas the fiber response was captured by a fourth‑order polynomial. Constitutive parameters were calibrated against experimental uniaxial tension data from human thoracic spinal ligaments. The models were implemented via user‑defined material subroutines in Abaqus and LS‑Dyna and evaluated with finite shell elements. Performance of the afore-mentioned constitutive laws was assessed based on their ability to fit experimental data and their computational efficiency. The results indicate that, although the Yeoh model provides the best fit to the experimental data in terms of root mean square error, it tends to underestimate the fiber contribution to the overall material response, resulting in an over-stiffening effect in simulations of short-sample tensile tests. In contrast, the Neo-Hookean and Mooney-Rivlin models do not exhibit this issue.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.