Open Access
Articles
Article ID: 173
by qian Wang
Composite Materials Research, Vol.2, No.1, 2024; 173 Views, 12 PDF Downloads
In order tostudy the influence of structure parameters on process-induced distortions of v-shaped composite pArts,A series of experiments were performed to analysis the effect of structure parameters including part thickness,partradius,partangleand lay-up.Based on the shear lag theory and bending theory,ananalytical model Considering the effect of structure parameters was developed to predict the spring-m of v-shaped compositeNfluence mechanism of different structure parameters on spring-m and the Modll was analyzed.The results Show thatspring-in decreases with the increase of thethickness and maximum variation of spring-ins a bout  30%whenthickness s between 1 mm and 3 mm.There s A proportion relationship whose value s about 0.014 between spring-n angles and part angle.The d ifferences of spring-n angles which result from different radius are Less than 5%.The test pieces with Quasi-sotropic lay-up exhibit the biggest spring-in.The spring-in angles of0 la}^up pieces decrease by.5%and90 pieces almost have no  spring-n. Analysis results show that influ ence of THickness on spring-in should consider it effect on bending si i ffness and shear deformation;>mechanical Properties and Poisson ' s effect d ifferences caused by lay - up are the main reasons for spring-in DivErsity;theMaxi Mum distortions of flange s 0  . 20 which hasgreatly influences on spring-in.The comparison between emulation re Sults and experiment verifies the accuracy of analytical model.
Open Access
Articles
Article ID: 201
by yi First Wang
Composite Materials Research, Vol.2, No.1, 2024; 139 Views, 10 PDF Downloads
A link structure is a key component of a large composite structure , Plays an important role in ensuring the integrity of composite structures . due to composite material material connection structure Complex nonlinear coupling factor , makes it difficult to analyze the strength and failure modes of the composite connection structure , so , must be Monitoring of the health status of composite joint structures , diagnostics , Evaluation and prediction , gain real-time knowledge of the health of the structure through online monitoring and response to external load , On this basis, the future defects and failures can be predicted , to be able to take action within the appropriate time period , to ensure the safety of composite structure service and achieve maximum economic benefits . with aircraft composite connection structure background , First briefly analyzes the composite material glue connect , damage and failure modes for mechanical and mixed connections ,then focus on wave propagation method , Impedance method , Smart coating supervisor measuring method , Vacuum comparison monitor , Health monitoring of composite material connection structure using optical fiber sensing monitoring and hybrid Integrated Monitoring method (S HM) Technology Research Progress ,Finally, the development trends and challenges of the health monitoring technology for aircraft composite connection structures are discussed . .
Open Access
Articles
Article ID: 177
by senhua Lu
Composite Materials Research, Vol.2, No.1, 2024; 190 Views, 8 PDF Downloads
Graphite oxide ( Gnpheneoxdego ) with its unique two-dimensional nanometer layer structure , Super large surface area and hydrophilic polar interface , make it function The field of composite materials has wide application and development prospects . This article summarizes recent years go Composites in enhancedtoughening , Adsorption separation , photocatalysis and Biomedicine Research Status and Progress , introduced go regulating the formation of structured and orderly microstructure of polymeric materials and cement matrix produces significant enhancement The mechanism of the toughness , Analysis go composites on adsorption , catalysis , the principles of biomedicine, etc. , indicates that go Enhanced toughened composites ,,go adsorption complex Composite and go application prospect and development trend of photocatalytic composite materials .
Open Access
Articles
Article ID: 169
by Package Shiliying
Composite Materials Research, Vol.2, No.1, 2024; 225 Views, 17 PDF Downloads
Advanced resin matrix composites have become one of the most important aerospace structural materials.The mainly introduces the advanced resin base composite material at home and abroadmaterial Enhanced fiberresin matrix,Development of manufacturing technology and structural functional integration Technology,and evaluation of advanced resin matrix composites,and pleaseDiscusses thedevelopment trends and opportunities and challenges facing advanced resin matrix composites.advanced resin matrix composites development Current opportunities and picksWar has:resin matrix composites continue to develop in High-performance;structural function integration of resin matrix composites presents versatility and cutting-edge trends;Isbased on multipleComposite design techniques for scale modeling and characterization usher in an extremely important development opportunity;versatility becomes an important target for future development of carbon nanocompositesMark;environment-friendly birth of green composites,thermoplastic Composites and efficient recycling technology;Smart Composite Technology supportslarger,more integratedThe reliable application of the overall structure of composites;Internetage composites will face profound changes in research methods.
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