Continuous Film Stacking and Thermoforming Process for Hybrid CFRP/aluminum Laminates

Nestler, Daisy; Trautmann, Maik; Zopp, Camilo; Tröltzsch, Jürgen; Osiecki, Tomasz; Nendel, Sebastian; Wagner, Guntram; Kroll, Lothar

doi:10.1016/j.procir.2017.03.221

Cited by 29 publications

(16 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, many countries including the United States, Japan, Germany, and China have promulgated related policies on energy conservation and emission reduction. As "energy conservation and emission reduction" [1][2][3] has become a popular topic, lightweight materials have been widely applied to many important fields such as aerospace, automobile transportation, architecture, and pipeline transportation [4,5]. Lightweight aircraft and automotive structures can not only greatly reduce fuel consumption and environmental pollution but also effectively improve the service life of key components [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…Lightweight aircraft and automotive structures can not only greatly reduce fuel consumption and environmental pollution but also effectively improve the service life of key components [6,7]. Among them, FML, which was made of metal plates and fiber composite materials through hot pressing and curing, has attracted the attention of researchers for its excellent mechanical properties and weight reduction effect [4,[8][9][10][11][12][13][14][15], as shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Research Progress on Interlaminar Failure Behavior of Fiber Metal Laminates

Chen

Wang

2020

Advances in Polymer Technology

View full text Add to dashboard Cite

Fiber metal laminate (FML) is a kind of lightweight material with excellent mechanical properties combining advantages of metal laminates and fiber reinforced composites. It has been widely used in the aerospace and transportation fields and is especially used as structural material such as aircraft skins, wings, and tails. However, under complex service conditions, interlaminar failure in FMLs greatly reduced mechanical properties of the material, even leading to serious economic and safety disasters. The failure and destruction of important structural parts of aircraft and other manned transportation vehicles are extremely unsafe for people. Therefore, it is of great significance to summarize the interlaminar failure behavior of FMLs and find ways to avoid these defects. This review paper is a collection of various researches done by many groups, which systematically discuss the interlaminar failure behaviors and their control methods of FMLs. The application status of several common FMLs in aircraft structures was given. The common interlaminar failure modes of FMLs and the testing and evaluation methods of interlaminar properties were stated. The failure mechanisms and the corresponding control methods were analyzed. Finally, the future developments of FMLs were also discussed by the authors. Through this review article, readers can obtain new research progress about the control method, the mechanism and future development on the failure behavior of FMLs in a more efficient way.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research Progress on Interlaminar Failure Behavior of Fiber Metal Laminates

Chen

Wang

2020

Advances in Polymer Technology

View full text Add to dashboard Cite

show abstract

“…Such a combination of different materials in lightweight construction has led to the growing importance of mixed construction of metal-plastic compounds. These mixed constructions are usually characterized by an additional joining zone at the interface between the two dissimilar materials that form the structural and functional unit of the complete metal-plastic compound [3]. The ultimate aim of joining such dissimilar materials together is to enhance the flexibility of product design and thereby allowing the possibility to use various properties in a combined manner.…”

Section: Introductionmentioning

confidence: 99%

Joining of Macroscopic 3D Steel Transition Wire Structures to Steel Sheets: Study on the Mechanical, Microstructural, and Phase Characteristics of Brazed and Glued Joints

Palaniyappan

Todt

Trautmann

et al. 2022

Metals

Self Cite

View full text Add to dashboard Cite

With an increased demand for the combination of different material classes in lightweight applications like automobiles, aircraft construction, etc., the need for simple and energy-efficient joining technologies to join these different material classes has been extensively researched over the last decades. One such hybrid material combination is the metal–plastic hybrid structure, which offers the combinational characteristics of high strength and stiffness of the metal part along with characteristic elasticity and low density of the plastic part. In this research work, the focus is laid on generating a graded property transition at the interface of metal–plastic joints by brazing a three-dimensional (3D) macroscopic transition wire structure (TWS) strucwire®, over the metal part before being molded with plastic at a later stage using an injection over-molding process. This helps in providing a mechanical interlocking facility and thereby achieving a higher load transfer at the interface of metal–plastic hybrid joints. The graded steel wire structures with different carbon content were brazed onto the galvanized steel sheets using the hotplate brazing technique. In addition to the Zinc layer on the galvanized steel sheets, electroplated Zinc coatings were fabricated on the wire structures to provide better brazing quality. The microstructural, mechanical, and intermetallic phase characteristics of the resulting brazed joints were evaluated using light microscopy, adhesion tests, and scanning electron microscopy, respectively.

show abstract

“…It has been shown that hybrid laminates with a thermoplastic matrix offer basic formability [13,14]. By heating above the melting temperature of the matrix, complex structures can be formed [15,16]. Bending fatigue tests on CAAPAL with mechanically blasted AA6082 sheets revealed at low loads only crack initiation in the aluminum.…”

Section: Introductionmentioning

confidence: 99%

Influence of Aluminum Surface Treatment on Tensile and Fatigue Behavior of Thermoplastic-Based Hybrid Laminates

et al. 2020

Self Cite

View full text Add to dashboard Cite

Hybrid laminates consist of layers of different materials, which determine the mechanical properties of the laminate itself. Furthermore, the structure and interfacial properties between the layers play a key role regarding the performance under load and therefore need to be investigated in respect to industrial applicability. In this regard, a hybrid laminate comprised of AA6082 aluminum alloy sheets and glass and carbon fiber-reinforced thermoplastic (polyamide 6) is investigated in this study with a focus on the influence of aluminum surface treatment application on tensile and fatigue behavior. Four different aluminum surface treatments are discussed (adhesion promoter, mechanical blasting, phosphating, and anodizing), which were characterized by Laser Scanning Microscopy. After the thermal consolidation of the hybrid laminate under defined pressure, double notch shear tests and tensile tests were performed and correlated to determine the resulting interfacial strength between the aluminum sheet surface and the fiber-reinforced plastic, and its impact on tensile performance. To investigate the performance of the laminate under fatigue load in LCF and HCF regimes, a short-time procedure was applied consisting of resource-efficient instrumented multiple and constant amplitude tests. Digital image correlation, thermography, and hysteresis measurement methods were utilized to gain information about the aluminum surface treatment influence on fatigue damage initiation and development. The results show that fatigue-induced damage initiation, development, and mechanisms differ significantly depending on the applied aluminum surface treatment. The used measurement technologies proved to be suitable for this application and enabled correlations in between, showing that the hybrid laminates damage state, in particular regarding the interfacial bonding of the layers, can be monitored not just through visual recordings of local strain and temperature development, but also through stress-displacement hysteresis analysis.

show abstract

Continuous Film Stacking and Thermoforming Process for Hybrid CFRP/aluminum Laminates

Cited by 29 publications

References 4 publications

Research Progress on Interlaminar Failure Behavior of Fiber Metal Laminates

Research Progress on Interlaminar Failure Behavior of Fiber Metal Laminates

Joining of Macroscopic 3D Steel Transition Wire Structures to Steel Sheets: Study on the Mechanical, Microstructural, and Phase Characteristics of Brazed and Glued Joints

Influence of Aluminum Surface Treatment on Tensile and Fatigue Behavior of Thermoplastic-Based Hybrid Laminates

Contact Info

Product

Resources

About