Wolfgang H. Müller

Tensile characterization and life cycle assessment of fungal-colonized 3D-printed PLA/wood biocomposites

Narges Panjalipoursangari, Yanlong Zhu, Wolfgang H. Müller, Christina Völlmecke

This study investigates the mechanical behaviour of additively manufactured biocomposites based on PolyLactic Acid (PLA) reinforced with nominal wood-particle contents ranging from 10 to 50wt. % and subsequently subjected to controlled growth of the fungus Fomes fomentarius. The aim was to analyse …

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Notes on Electrostatics in $\mathbb R^3$

Vladimir Gol'dshtein, Wolfgang H. Müller, Reuven Segev

A compact formulation of electrostatics is presented. Without using constitutive relations, including the aether relations, an expression for the potential energy of a charged region under a potential function is proposed, where the charge distribution is specified by the charge potential field. …

A structure-preserving discretisation of SO(3)-rotation fields for finite Cosserat micropolar elasticity

Lucca Schek, Peter Lewintan, Wolfgang H. Müller, Ingo Muench et autres

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Physical implications of decoupled boundary conditions in micropolar elasticity

Lucca Schek, Wolfgang H. Müller, Elena N. Vilchevskaya, Victor A. Eremeyev

The physical implications of boundary conditions in linearized micropolar elasticity are analyzed analytically and numerically. Firstly, a closed-form solution for the shearing of a block under arbitrary surface tractions, surface couple stresses, and volume loads is derived. This solution reveals the distinct …

Numerical and Experimental Analysis of Free Vibrations of Thick‐Walled Cylindrical Shell

Alexander Ya. Grigorenko, Wolfgang H. Müller, М.Ю. Борисенко, Olena V. Boychuk

ABSTRACT Free vibrations of an isotropic thick‐walled circular cylindrical shell with one end rigidly clamped, and the other free, are investigated numerically and experimentally. The natural frequencies and corresponding mode shapes are determined using the finite element method within a three‐dimensional elasticity …

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Thermo-Elastic-Viscoplastic Damage Model for Sn-Ag-Cu Solder

Torsten Hauck, Aleksandr Morozov, Wolfgang H. Müller, Golam Rakib Mazumder et autres

A continuum damage model is proposed aiming to assess the failure mechanism of Sn-Ag-Cu (SAC) solder joints subjected to thermal and mechanical cycling conditions. Constitutive relations take into account elasticity, rate independent plasticity and rate dependent creep. Damage is introduced by the …

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A Dual Quaternion based RRT* Path Planning Approach for Satellite Rendezvous and Docking

Ana Stankovic, Mohamed Khalil Ben‐Larbi, Wolfgang H. Müller

This paper proposes a sampling-based motion planner that employs a dual quaternion representation to generate smooth, collision-free six-degree-of-freedom pose trajectories for satellite rendezvous and docking under keep-out zone constraints. The proposed planner integrates the dual quaternion algebra directly into an RRT* framework, …

A Dual Quaternion based RRT* Path Planning Approach for Satellite Rendezvous and Docking

Ana Stankovic, Mohamed Khalil Ben‐Larbi, Wolfgang H. Müller

This paper proposes a sampling-based motion planner that employs a dual quaternion representation to generate smooth, collision-free six-degree-of-freedom pose trajectories for satellite rendezvous and docking under keep-out zone constraints. The proposed planner integrates the dual quaternion algebra directly into an RRT* framework, …

Impact of Fomes fomentarius growth on the mechanical properties of material extrusion additively manufactured PLA and PLA/Hemp biopolymers

Narges Panjalipoursangari, Yating Ou, Bertram Schmidt, Wolfgang H. Müller et autres

Fungal-based biomaterials are emerging as sustainable alternatives to synthetic polymers, offering biodegradability and low environmental impact. However, the interaction between mycelium and 3D-printed biopolymers, particularly regarding mechanical performance, remains underexplored. This research investigates the tensile behavior of biopolymer specimens produced by Material …

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COMPUTATIONAL ANALYSIS OF THE DEFORMATION BEHAVIOR OF 4D-PRINTED LIQUID CRYSTAL ELASTOMERS UNDER CHANGE OF TEMPERATURE

Lucca Nikita Schek, Elena N. Vilchevskaya, Wolfgang H. Müller

This paper focuses on an FE simulation of Liquid Crystal Elastomers (LCE). For this purpose, a new method is proposed based on the combination ofnonlinear deformation analysis based on a St. Venant – Kirchhoff law, i.e., a physically linear but geometrically nonlinear …

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Data-driven optimization design of a novel combined metamaterial for robotic grinding vibration control

Yutong Jin, Hua Shu Yang, Wolfgang H. Müller, Jingkun Guo et autres

Dielectric and Conductive Properties of Solids: Classical and Extended Electrodynamics

Elena A. Ivanova, Wolfgang H. Müller

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