001461229 000__ 04989cam\a2200625\i\4500 001461229 001__ 1461229 001461229 003__ OCoLC 001461229 005__ 20230503003342.0 001461229 006__ m\\\\\o\\d\\\\\\\\ 001461229 007__ cr\un\nnnunnun 001461229 008__ 230307s2023\\\\sz\a\\\\omb\\\000\0\eng\d 001461229 019__ $$a1371791162 001461229 020__ $$a9783031237669$$q(electronic bk.) 001461229 020__ $$a3031237668$$q(electronic bk.) 001461229 020__ $$z9783031237652 001461229 020__ $$z303123765X 001461229 0247_ $$a10.1007/978-3-031-23766-9$$2doi 001461229 035__ $$aSP(OCoLC)1371969279 001461229 040__ $$aGW5XE$$beng$$erda$$epn$$cGW5XE$$dYDX$$dOCLCF$$dN$T 001461229 049__ $$aISEA 001461229 050_4 $$aTA455.P55 001461229 08204 $$a620.1/92397$$223/eng/20230307 001461229 1001_ $$aScholle, Patrick,$$eauthor. 001461229 24512 $$aA two-dimensional piezoresistivity model for anisotropic materials and its application in self-sensing of carbon fiber reinforced plastics /$$cPatrick Scholle. 001461229 264_1 $$aCham :$$bSpringer,$$c2023. 001461229 300__ $$a1 online resource (xv, 196 pages) :$$billustrations (some color). 001461229 336__ $$atext$$btxt$$2rdacontent 001461229 337__ $$acomputer$$bc$$2rdamedia 001461229 338__ $$aonline resource$$bcr$$2rdacarrier 001461229 4901_ $$aMechanics and adaptronics,$$x2731-622X 001461229 502__ $$aThesis (Doktor-Ingenieurs)--Technischen Universität Carolo-Wilhelmina zu Braunschweig, 2022. 001461229 504__ $$aIncludes bibliographical references. 001461229 5050_ $$a1. Introduction -- 2. State of the Art of Embedded Strain Sensors for Fiber Reinforced Plastics -- 3. Electrical Homogeneity and Fiber Waviness: Predominant Factors for Self-Strain-Sensing Carbon Fiber Structures ⁰́₃ A Literature Study -- 4. Concerning the Influence of Current Inhomogeneity on Self-Strain-Sensing Properties of Carbon Fiber Reinforced Plastics -- 5. Direct Measurement of the Potential Distribution on Conducting Surfaces -- 6. Implementation Aspects of Self-Strain-Sensing Carbon Fiber Rods -- 7. Summary Conclusions and Outlook. 001461229 506__ $$aAccess limited to authorized users. 001461229 520__ $$aThis thesis works on the topic of fiber-reinforced plastics and discusses the measurement of strain with embedded sensors. Embedding sensors into a structure fundamentally poses challenges arising from the differences in mechanical properties of sensor and structure. This thesis works on the research area of Self-Sensing, where these challenges are overcome by using carbon fibers for both load-carrying and strain-sensing functions. Starting with a literature review, this thesis proposes three research hypotheses, which are targeted to describe the Self-Sensing properties of unidirectional carbon fiber reinforced plastics (CFRPs) for strain measurements. These hypotheses assume, that the electric anisotropy of the material results in a complex voltage distribution within a Self-Sensing specimen. In order to discuss this point further, a two-dimensional piezoresistivity model based on the Laplace equation is introduced. The developed model newly allows to quantify the electric potential changes in specimens with arbitrary geometrical dimensions and electric anisotropy. Furthermore, this thesis discusses a set of experimental results on the piezoresistive properties of unidirectional CFRP made with the pultrusion process. Overall, the results of the experiments indicate that the most repeatable results are obtained for specimens with electric contacts at their cut-end. This approach allows to manufacture Self-Strain-Sensing rods with a gauge factor of approximately 1.9 that can be used in a multifunctional manner for both load-carrying and strain-sensing purposes. Furthermore, a novel measurement setup is developed, which allows to acquire the electric potential distribution on the surface of electrical conductors with very high spacial resolution. This experimental setup newly reveals that the current flow in specimens can be more complex than assumed in a two-dimensional model. 001461229 588__ $$aOnline resource; title from PDF title page (SpringerLink, viewed March 7, 2023). 001461229 650_0 $$aFiber-reinforced plastics$$xElectric properties. 001461229 650_0 $$aPiezoelectricity. 001461229 655_0 $$aElectronic books. 001461229 77608 $$iPrint version:$$z303123765X$$z9783031237652$$w(OCoLC)1353761083 001461229 830_0 $$aMechanics and adaptronics,$$x2731-622X 001461229 852__ $$bebk 001461229 85640 $$3Springer Nature$$uhttps://univsouthin.idm.oclc.org/login?url=https://link.springer.com/10.1007/978-3-031-23766-9$$zOnline Access$$91397441.1 001461229 909CO $$ooai:library.usi.edu:1461229$$pGLOBAL_SET 001461229 980__ $$aBIB 001461229 980__ $$aEBOOK 001461229 982__ $$aEbook 001461229 983__ $$aOnline 001461229 994__ $$a92$$bISE