欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
针对冰的单轴压缩强度行为同加载方向、加载位移速度和试样相对尺寸有关，在-10℃冰样温度条件下，对不同尺寸的5种试样、平行冰面和垂直冰面的2种加载方向和位移速度在0．0072—387mm／min范围内，进行了25种组合的385次单轴压缩强度试验，获得375个试样的有效试验数据。结果发现，每组试样随加载位移速度的增加，其冰样的极限破坏应力（强度）也增加，达到一定值后，随加载位移速度的增加而减小；对应的冰样破坏形式也由韧性剪切破裂过渡到脆性破碎；垂直冰面方向柱状晶体的冰样强度约是平行冰面方向加载强度的1．87～2．40倍，表现出各向异性；试样相对尺寸小时其强度相对较大。
英文摘要：
Considering the ice uniaxial compressive behaviors with loading directions, loading displacement speeds and specimen sizes, 385 tests in 25 groups were conducted with five different specimen sizes, two different loading directions parallel or perpendicular to the original ice surface, and the loading displace- ment speeds ranging between 0.0072N387 mm/min under the ice specimen temperature of-10℃. A total of 375 tests were successful in the 385 specimen tests. The experimental results show that （a） the ice ulti- mate stress （strength＇） increases firstly, reaches a top value, and then decreases with the loading displace- ment speed increasing; （b） the corresponding ice specimen failure modes change from ductile break to brit- tle break with the strain rate increasing; （c） the peak strength perpendicular to ice surface is 1.87~2.40 times of the strength parallel to ice surface in the columnar crystal ice, which it is a typical anisotropy ma- terial characteristics; and （d） the peak strength is higher in the cases of relative smaller specimens.
同期刊论文项目
同项目期刊论文
Nonlinear lifting theory for unsteady WIG in proximity to incident water waves. Part 1: Two-dimensio
A numerical study of whole ship structural damage resulting from close-in underwater explosion shock
Active Thermometry Based DS18B20 Temperature Sensor Network for Offshore Pipeline Scour Monitoring U
Experimental investigation of the interaction of multidirectional irregular waves with a large cylin
Time-domain numerical and experimental analysis of hydroelastic response of a very large floating st
Research of concrete residual strains monitoring based on WLI and FBG following exposure to freeze-t
Numerical studies on sloshing in rectangular tanks using a tree-based adaptive solver and experiment
Numerical and experimental analysis of hydroelastic response on a very large floating structure edge
Development of a regional coastal management decision-aided system. Part A: Establishment of an auto
Vortex shedding from a two-dimensional cylinder beneath a rigid wall and a free surface according to
Nonlinear lifting theory for unsteady WIG in proximity to incident water waves. Part 2: Three-dimens
Second-order coupling of numerical and physical wave tanks for 2D irregular waves. Part II: Experime
Direct Time Domain Numerical Analysis of Transient Behavior of a VLFS during Unsteady External Loads
Coupled wind-wave time domain analysis of floating offshore wind turbine based on Computational Flui
Thickness distribution and extent of sea ice and snow in Prydz Bay and surrounding waters observed i
Application of support vector machine for pattern classification of active thermometry-based pipelin
Coupled control of the horizontal and vertical plane motions of a semi-submersible platform by a dyn
BP neural network recognition algorithm for scour monitoring of subsea pipelines based on active the
Second-order coupling of numerical and physical wave tanks for 2D irregular waves. Part I: Formulati
Numerical study of transient harbor resonance induced by solitary waves resonance induced by solitar
期刊信息
位置：