Material Strength Using Steady Bending Forces TRIZ Cases

Bulge tests with hemispherical punches of different curvatures add bending deformation to forming-limit analysis for more accurate fracture prediction.

Controlled rolling and sliding keep flexible material flat under even tension, enabling durable testing without wrinkling or substrate damage.

Multiple released-angle measurements capture elastic springback in deformed reinforcing bars, enabling more accurate target-angle bending.

Bend outer side strain and die bend radius are used to predict sheared-edge cracking before press forming high-strength steel parts.

Interlocking horizontal and inclined sliders correct folding motion to minimize stress on flexible materials during durability testing.

Calculating a crack index from bend strain and die radius helps predict sheared-edge bending cracks in press-formed steel parts.

A lever-driven plunger and interchangeable guide shoes bend and break weld coupons without electricity or hydraulics for portable testing.

A guided support and load cell setup captures substrate loads during folding while minimizing added stress from the test mechanism.

A gear-hinge test jig folds flexible display panels while exposing panel sides, enabling reliable evaluation of bending durability.

Independently moving stages and overlapping extensions expand bent-area coverage for more reliable flexible glass strength testing.

Adjustable chucks and rotators simulate repeated multi-fold display bending to measure strength and deformation across sizes and shapes.

Adjustable position limits and an elastic clamp create controlled fold rates, enabling reliable display-effect and durability testing of flexible modules.

Rotating support plates with a transparent viewing region enable low-cost, accurate measurement of flexible display shifting during bending.

Rotating carrier arms and motor-driven linkages reproduce wing-bending paths with adjustable angle, radius, speed, and cycle count.

A four-point bending test structure measures die-to-substrate bonding energy to predict delamination and warpage in 3D IC packages.

A fixture, support beams, load members, and sensors measure substrate bending and joint peel strength to reveal blade failure points before installation.

An integrated jig applies rubbing and bending loads to elongated materials, avoiding transfers that vary test conditions and improving result consistency.

A pivotable arm and gauge apply controlled bends to wire harnesses, replacing subjective tests with repeatable angular flexibility measurements.

Four-point bending test structures measure bonding energy to help manage thermal-stress damage in stacked semiconductor packages.

Nonoverlapping fixing blocks hold thin-film glass during folding, improving flexural-strength reliability without separate crack-line inspection.

A laterally fixed saddle, reinforced roller, and angled yoke reduce fixture compliance for more reliable mixed-mode fracture measurements.

A transparent intermediary plate and fixed camera stabilize imaging for evaluating strain and cracks in automobile body sheet bending.

Alternating mandrels with defined angles enable accurate bending loss measurement without increasing winding time.

A sliding unit holds and moves a flexible material section while a folding unit rotates the opposing side to create precise bends.

A measurement device calculates material flexural strength using height difference data acquired from a structure bottom surface.

Parallel bars invert tube sections to enable rapid, reproducible assessment of oxidation-induced degradation.

An X-ray scatter system detects internal structural variations by measuring scattering patterns from composite materials.

A pivotal linkage fixture applies counteracting moments to constrain rotor blade tip displacement during axial load testing.

Dynamic clip and observing units measure lateral profiles to calculate precise bending radii for flexible units.

A reaction force measuring device presses a hose in a sandwiching space to detect bending stiffness changes.

A disk bending shear testing system supports samples at three peripheral locations to measure interlaminar shear strength.

Distributed bending sensors reconstruct shape and calculate multi-directional external forces, preventing lumen damage without increasing tube size.

Co-deposited test coupons deflect to a predetermined strain threshold, verifying fatigue performance without destroying the actual coated parts.

A test apparatus uses interchangeable indenters to perform three-point and four-point bending tests on a single support base.

A rotating bending mechanism with elastic clamping parts automates the deformation of flexible printed circuit boards.

Coating a measurement pigment composition on the display panel allows 3D imaging to detect strain, preventing delamination defects during bending.

Cross-correlating photodetector signals cancels background noise, enabling accurate stiffness estimation of deformable parts up to 100 N/m.

A detection apparatus measures bending stiffness of flexible display panels by driving a rotating portion against a stationary reference surface.

Segmented rotating shafts drive supporting members to simulate folding states, reducing facility manufacturing and maintenance costs.

Rocking bioreactor platform induces controlled indentations to accelerate flexural fatigue testing of polymer films used in bioprocess bags.

Segmented test components with protruding pillars enable precise adhesion measurement of embedded interfaces in high-volume optoelectronic production.

A display inspection apparatus measures three-dimensional glass surface shapes to calculate curvature variables for non-destructive analysis.

Black Space diagrams map complex shear modulus against phase angle to predict thermal stress relaxation in extreme climates.

A damage indicator with a crack guide through hole cracks along corners to visually show PCB deformation.

Modular test equipment simulates stress conditions on cowl crossbars, resolving the trade-off between high reliability and low device complexity.

A method calculates component threshold stress intensity factors using asymmetric four-point bend test data to assess fatigue crack growth.

A method calculates bending fracture risk ratios using finite element analysis to quantify deformation limits in metal sheets.

A detection device compresses and rotates arrow shafts to identify structural weak spots.