生物高聚物
拉伤
压力(语言学)
材料科学
应力-应变曲线
岩土工程
变形(气象学)
压缩(物理)
土壤水分
土工试验
复合材料
地质学
土壤科学
聚合物
生物
哲学
解剖
语言学
作者
Antonio Soldo,Marta Miletić,Víctor Aguilar
出处
期刊:Research Square - Research Square
日期:2021-06-22
被引量:1
标识
DOI:10.21203/rs.3.rs-540716/v1
摘要
Abstract Enhancement of soil engineering properties with biopolymers has been shown recently as a viable and environmentally benign alternative to cement and chemical stabilization. Interest in biopolymer-treated soil is evident from the upsurge of related research activities in the last five years, most of which have been of experimental nature. However, biopolymers have not yet found their way into engineering practice. One of the reasons for this may be the absence of computational models that would allow engineers to incorporate biopolymer-treated soil into their designs. Therefore, the main goal of this study is to numerically capture a macroscopic stress-strain response and investigate the effect of biopolymers on the onset of strain localization. Several diagnostic strain localization analyses were conducted, thus providing strain and stress levels at the onset of strain localization, along with the orientations of the deformation band. Several unconfined compression and triaxial tests on the plain and biopolymer-treated soils were modeled. Results showed that biopolymers significantly improved the mechanical behavior of the soil and affected the onset of strain localization. The numerical results were confirmed by the digital image analysis of the unconfined compression tests. Digital image processing successfully captured high strain concentrations, which tend to occur close to the peak stress.
科研通智能强力驱动
Strongly Powered by AbleSci AI