COMPUTATIONAL WELDING MECHANICS

Computer Simulation of Welding Processes

Introduction and Synopsis

Computer aided Design (CAD) and analysis and Computer Integrated Manufacturing (СІМ) are popular topics for research. Computer aided drafting and engineering analysis such as Finite Element Method (FEM) are well developed. Finger & Dixon [1 and 2] categorize research areas in their review of theory and methodology of mechanical design. They agree that computer-based models provide the best opportunity to improve theories of design and increase their acceptance. Simulations are useful in designing the manufacturing process as well as the manufactured component itself.

Figure 2-1 shows an overview of some of the activities that will be performed during the product development cycle adopted from [3 and 4].

DESIGN

Tools for functional evaluation

Concept

Preliminary

Detailed

Design

Design

Design л..

Tools for evaluation of manufacturing effects

Inventory of

Preliminary

Detailed

known methods

_*

Preparation

—►

Preparation

V7

Tools for planning of manufacturing

COMPUTATIONAL WELDING MECHANICS

Fracture Mechanics of Welded Structures

For fracture mechanics the location and geometry of the crack or defect must be specified as input data. The crack geometry could be specified as an ordered set of points …

Material Properties Summary

Properties can be provided for a material or alloy or for a specific phase in a material or alloy. If properties are provided for a specific phase, then the macroscopic …

Weld Pool Solver

If there is a weld pool solver that computes the weld pool free surface, velocity and temperature in the weld pool and weld pool reinforcement, the input data should include …

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