Sökning: "constitutive modeling"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden constitutive modeling.

  1. 1. Machine learning for constitutive modeling

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Anna Robbins; Gustav Vittberg; [2021]
    Nyckelord :;

    Sammanfattning : Constitutive modeling of nonlinear materials is a computationally complex and time-intensive process. To mitigate this, a neural network was used to simulate complex behaviors of non-linear materials. With supervised learning the machine learning model was able to predict the stresses in a material when given the strains. LÄS MER

  2. 2. Numerical modeling and experimental investigation of large deformation under static and dynamic loading

    Master-uppsats, Linnéuniversitetet/Institutionen för byggteknik (BY)

    Författare :Benjamin Bondsman; [2021]
    Nyckelord :Total Lagrangian; Updated Lagrangian; Newmark; Energy Conserving; Algorithm; Numerical; Modeling; Large; Deformation; steel; Wood; Pine; Plane Strain; 3D;

    Sammanfattning : Small kinematics assumption in classical engineering has been in the center of consideration in structural analysis for decennaries. In the recent years the interest for sustainable and optimized structures, lightweight structures and new materials has grown rapidly as a consequence of desire to archive economical sustainability. LÄS MER

  3. 3. Finite Element Modeling of Short, Randomized Fiber Composite Material

    Master-uppsats, KTH/Lättkonstruktioner

    Författare :Simone Ambrogio; [2020]
    Nyckelord :;

    Sammanfattning : With the advent of hybrids and electric vehicles, the need for lightweight and highperformancematerials is growing. Sheet molding compound (SMC) is a compositemade of short and randomized  bers that o ers a substantial weight reduction andgood mechanical properties while meeting the demand for large volume production. LÄS MER

  4. 4. Three-dimensional constitutive finite element modeling of the Achilles tendon

    Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

    Författare :Giacomo Longo; [2015]
    Nyckelord :Constitutive modeling; FEM; Achilles tendon; Soft tissue; Fluid behaviour; 3D geometry; Technology and Engineering;

    Sammanfattning : Tendons connect muscles to bones enabling efficient locomotion. This study focuses on the Achilles tendon, which is the strongest tendon in the body and fundamental for activities like walking, running and jumping. The Achilles tendon is the most frequently subjected tendon when it comes to injuries and ruptures. LÄS MER

  5. 5. Biomechanics of Arterial Smooth Muscle. : - Analyzing vascular adaptation of large elastic arteries using in vitro experiments and 3D finite element modeling.

    Magister-uppsats, KTH/Hållfasthetslära (Inst.)

    Författare :Susanne Lewin; [2014]
    Nyckelord :;

    Sammanfattning : A number of cardiovascular diseases (e.g. aortic aneurysm, aortic dissection and atherosclerosis) are associated with altered biomechanical properties in the vascular wall. This thesis studies vascular adaptation and its resulting alteration in biomechanical properties. LÄS MER