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Soil-Machine Interactions: A Finite Element Perspective [Kõva köide]

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Soil-Machine Interactions: A Finite Element PerspectiveSuurem pilt
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Püsilink: https://www.kriso.ee/db/9780824700812.html
Märksõnad:
Provides an introduction to Finite Element Method (FEM) analysis of soil-machine systems, with an emphasis on soil-tool systems. Coverage includes soil-constitutive and soil-metal interface models; constitutive models of elastic, plastic, and dynamic agricultural soils; typical interface elements and stress-displacement relation models; algorithms for static or dynamic and linear or nonlinear cases; time- and space-efficiency techniques; and theoretical, programming, and design procedures. Including abundant case studies and illustrations, the volume should serve as a suitable reference for agricultural, biosystems, civil, forest, mechanical, automotive, and lubrication engineers; also as a textbook for upper-level undergraduate and graduates in these disciplines. Annotation c. by Book News, Inc., Portland, Or.

Arvustused

"...well written and the material has been logically mounted and presented. The authors have performed a very valuable service...by providing the material in this book in a fashion that permits one to grasp the essential elements of the complex procedures required in the application of the FEM of analysis of the stability of interfacing bodies. The book can be well recommended. ... It provides a very basic development of the method of application of finite element analysis as a tool for the study of interfacing elements." ---Journal of Terramechanics, 2001

Preface iii
Introduction
1(22)
Statement of the Problem
1(1)
Analytical Approach---Limit Equilibrium
2(18)
Two-Dimensional Models
4(1)
Three-Dimensional Models
5(15)
Numerical Approach---Finite Element Method
20(3)
Basic Procedures in a Finite Element Analysis
23(16)
Basic Steps in a Finite Element Analysis
23(8)
A Simple Example
31(8)
Constitutive Models for Agricultural Soils
39(74)
Concepts of Stress and Strain
40(7)
Stress
40(5)
Strain
45(2)
Elastic Models
47(6)
Linear Elastic Models
47(2)
Bilinear and Multi-Linear Elastic Models
49(1)
Hyperbolic Models
50(3)
Rate-Dependent Hyperbolic Models
53(1)
Plastic Models
53(32)
Classification of Plastic Models
56(1)
Underlying Assumptions of Soil Plasticity
57(11)
Complete Constitutive Model and Incremental Procedure
68(5)
Case Study: An Elasto-Plastic Model for an Agricultural Cohesive Soil
73(12)
Dynamic Models
85(28)
Viscoelastic Models
87(3)
Elasto-Viscoplastic Model
90(3)
Rate Process Model
93(20)
Simulation of Soil-Metal Interfaces
113(38)
Joint Element Modeling
113(14)
Friction Element Modeling
127(6)
Thin-Layer Element Modeling
133(4)
Shear Stress-Displacement Relation for an Interface Element
137(5)
Case Study: Numerical Simulation of Friction Behavior at a Soil-Tool Interface
142(9)
Finite Element Model
142(1)
Analytical Results and Discussion
143(8)
Algorithms in Static, Dynamic, Linear, and Non-Linear Finite Element Analyses
151(80)
Linear Static Cases
152(27)
Direct Solution
153(21)
Iterative Solution
174(5)
Material Non-Linearity
179(27)
Methods for Solving a Non-Linear Equation
180(9)
Methods for Solving Non-Linear Elastic Problems
189(8)
Methods for Solving Non-Linear Elasto-Plastic Problems
197(9)
Geometric Non-Linearity
206(16)
Geometric Linear Strain Formula
209(2)
Geometric Non-Linear Strain Formula
211(1)
Numerical Simulation of Large Soil Deformation
212(10)
Dynamic Response
222(9)
Algorithm Associated with the Newmark Method
223(4)
Algorithm Associated with the Wilson-&ths; Method
227(4)
Examples of Soil-Tool Interaction
231(54)
Milestones in Finite Element Analysis of Soil-Tool Interaction
231(19)
Plane Soil Cutting (Yong and Hanna)
231(3)
Two-Dimensional Soil Cutting (Xie)
234(2)
Fuzzy and Dynamic Finite Element Analysis (Xie and Zhang)
236(5)
Friction Element Analysis of Three-Dimensional Cutting (Liu and Hou)
241(2)
Three-Dimensional Analysis of Soil Failure with Curved Tools (Chi and Kushwaha)
243(7)
Analysis of Tillage Process
250(19)
Finite Element Model
254(3)
Analytical Results and Discussions
257(10)
Summary
267(2)
Effect of Numerical Parameters on Finite Element Analysis
269(16)
Idealized Interaction Between Soil and Tool
269(7)
Soil Elements
276(1)
Dynamic Effect of Tillage
277(6)
Summary
283(2)
Programming Techniques for Finite Element Analyses
285(34)
Programming Languages
285(3)
Introduction to FORTRAN Language
286(1)
Introduction to PASCAL and C Languages
287(1)
Notations for Evaluating the Cost of Memory Storage or Execution Time
288(1)
Strategies for Memory Management
289(13)
Introduction to Memory Hierarchy
290(2)
Allocation of Main Physical Memory
292(4)
Extension of Main Memory Space Using Virtual Memory Management
296(2)
Case Study: Memory Management in DOS Environment
298(1)
Variable Band Storage of Global Stiffness Matrix K
299(3)
Strategies for Reducing the Time Cost of Calculation
302(17)
Background Information
302(3)
General Criteria and Methods in Reducing the Execution Time
305(6)
Strategies in Reducing the Execution Time of a FEM Program
311(8)
References 319(8)
Index 327