FEM analyses on creep characteristics and strain fields of geogrid-reinforced sand

Conference proceedings article

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Li F.-L., Peng F.-L., Tan Y., Kongkitkul W.

ปีที่เผยแพร่ (ค.ศ.): 2011

Issue number: 211 GSP

หน้าแรก: 3736

หน้าสุดท้าย: 3747

จำนวนหน้า: 12

ISBN: 9780784411650

นอก: 0895-0563

eISSN: 0895-0563

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-79956346537&doi=10.1061%2f41165%28397%29382&partnerID=40&md5=cca553b0fb51b75abe03e5178101ae2b

ภาษา: English-Great Britain (EN-GB)

ดูบนเว็บไซต์ของสำนักพิมพ์

บทคัดย่อ

Both sand and polymer geogrid reinforcement are known to exhibit more-or-less complicated stress-strain-time or load-strain-time behavior including instantaneous non-linearity and viscous effects. Creep is one of the most important time-dependent behaviors of material, which is an inherent response of the viscous property of material. Due to interactions between the viscous sand and reinforcement, the creep characteristics of geogrid-reinforced sand could be very complicated. A nonlinear finite element method (FEM) analysis technique incorporating the unified three-component elasto-viscoplastic constitutive model for both sand and geogrid was developed. The FEM can simulate the whole process including the constant strain rate loadings and the creep loading stages. In addition, the development of strain fields during the creep loading can also be reproduced by the FEM simulation. By comparing the simulated results with the experimental results, it was shown that the proposed elasto-viscoplastic FEM could well simulate the creep characteristics of geogrid-reinforced sand, especially for the high stiffness following a creep loading stage. ฉ 2011 ASCE.

คำสำคัญ

Creep, Geogrids, Sand, Soil type, Strain