Sökning: "anisotropic weld"

Hittade 3 avhandlingar innehållade orden anisotropic weld.

1. 1. A 2D Ray Tracing Model of Ultrasonic Wave Propagation in an Anisotropic Weld

   Författare :Qingwei Liu; Chalmers tekniska högskola; []
   Nyckelord :probe model; ray tracing; anisotropic weld; wave propagation; FEM;

   Sammanfattning : .... LÄS MER

3. 2. Optimal Estimation of Grain Orientation in an Anisotropic Weld by Ultrasonic Techniques

   Författare :Qingwei Liu; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; anisotropic weld model; multi-objective genetic algorithm; nonlinear optimization; ultrasonic probe model; 2D ray tracing;

   Sammanfattning : Grain orientation in an anisotropic weld highly influences ultrasound paths and thus is a significant parameter when making simulations of ultrasonic testing of anisotropic welds. Though each weld is thought to be unique in its structure, the common procedure in modeling is to prescribe the grain orientation in a weld based on limited experience. LÄS MER

4. 3. Additively Manufactured Inconel 718 : Microstructures and Mechanical Properties

   Författare :Dunyong Deng; Johan Moverare; Ru Lin Peng; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Additive manufacturing (AM), also known as 3D printing, has gained significant interest in aerospace, energy, automotive and medical industries due to its capabilities of manufacturing components that are either prohibitively costly or impossible to manufacture by conventional processes. Among the various additive manufacturing processes for metallic components, electron beam melting (EBM) and selective laser melting (SLM) are two of the most widely used powder bed based processes, and have shown great potential for manufacturing high-end critical components, such as turbine blades and customized medical implants. LÄS MER