FEM analyses on rate-dependent behaviors of sand due to its viscous properties

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Li F., Peng F., Kongkitkul W., Tatsuoka F.

ปีที่เผยแพร่ (ค.ศ.): 2011

Volume number: 39

Issue number: 1

หน้าแรก: 13

หน้าสุดท้าย: 17+47

นอก: 0253-374X

eISSN: 0253-374X

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-79952809501&doi=10.3969%2fj.issn.0253-374x.2011.01.003&partnerID=40&md5=4ae1a1b5adf3a1f31ea90c7e6a605fff

ดูบนเว็บไซต์ของสำนักพิมพ์

บทคัดย่อ

Based on the experimental results from drained plane strain compression (PSC) tests on saturated sand under complex loading histories, the rate-dependent behaviors of sand due to its viscous properties were studied. It was found that sand exhibits obvious loading rate effects, creep deformation and stress relaxation. When monotonic loading was restarted immediately after a step-change in the strain rate or following a creep loading or stress relaxation stage, the stress-strain relation showed a very high tangent stiffness. A nonlinear finite element method (FEM) analysis technique was developed. In the FEM analyses, the sand was described by the three-component elasto-viscoplastic constitutive model. It was shown that the present FEM analyses can properly simulate the global stress-strain relationships obtained from the experiments. And the whole process including the variable strain rate loadings, the creep loading and stress relaxation stages were implemented in the FEM analyses.

คำสำคัญ

Elasto-viscoplastic properties, Loading rate