A transducer assembly is provided. The transducer assembly includes a magnetic portion, a body, a tensile pulse transmitter, and a pulse and current control unit. The magnetic portion is configured to provide a magnetic field. The body is disposed within an opening of the magnetic portion, and has a conductive portion configured to pass electric current near a body surface oriented toward the test surface. The tensile pulse transmitter is disposed within a cavity of the body and configured to transmit a tensile pulse into the test object. The pulse and current control unit is configured to control the tensile pulse transmitted by the tensile pulse transmitter, and to provide a current that passes through the conductive portion of the body and the test object, whereby a force urging the transducer assembly and the test object toward each other is generated responsive to the magnetic field and the current.

A portable shear testing device includes a shear force unit that has two elongated jaw members that are positioned adjacent to each other. One of the jaw members can be moved away from the other, stationary jaw member. One of the jaw members is moved by a pivotally mounted lever that laterally moves a load transfer block connected to the jaw member. A digital load cell is positioned between the lever and the load transfer block and a threaded knob is rotated to press against the lever.

A coating bond test method includes, attaching with an adhesive a pull-off bar to a coating on a planar surface of a substrate for which a normal bond strength between the coating and the substrate is sought, reducing a first area defined by an interface between the substrate and the coating to a value less than a second area defined by an interface between the adhesive and the coating, urging the pull-off bar away from the substrate in a direction normal to the planar surface until failure occurs, and recording a load at which failure occurred.

First and second operations are executed under control of a peeling inspection control apparatus functioning as a peeling and grasping control unit. In the first operation, a processed surface contact state in which a processed outer peripheral surface of a contact roller and a surface of a lead wire are in contact with each other is maintained, and contact roller rotation operation is executed in which the contact roller is moved on the surface of the lead wire while the contact roller is being rotated. During execution of the first operation, a tip portion of the lead wire is peeled from a glass substrate. Thereafter, in the second operation, grasping operation is executed in which the tip portion of the lead wire peeled from the glass substrate is grasped by a grasping mechanism.

An apparatus and method for separating welded multi-layered samples has a slotted engine-driven spindle that twists and pulls a layer from the sample, breaking the welds as the layer winds around the spindle. The sample is held between two clamps and a tensioning cylinder pulls a movable first clamp against the second stationery clamp. Sensors may sense the force required to break the welds and the data may be stored and analyzed in a computer.

A test apparatus used for simulating debonding between a carbon fiber reinforced polymer (CFRP) and concrete in a CFRP-strengthened structure consists of a primary structural block, a secondary structural block, an adjustable hanger, a receiving slot, an attachment mechanism, a pull-off disk, a connecting plate having a plurality of rods. The adjustable hanger and the secondary structural block are slidably positioned into the receiving slot that traverses into a structural body of the primary structural block. The adjustable hanger is mainly used during double-shearing tests and mixed-mode tests, wherein both shearing and peeling is analyzed in mixed-mode tests. The secondary structural block is used in double-shear tests, mixed-mode tests, single-shear tests, tension pull-off tests, and beam-bend tests. The attachment mechanism, which holds the primary structural block, the secondary structural block, and the adjustable hanger together, is also used during single-shear tests and beam-bend tests.

An apparatus and method for preparing Double Cantilever Beam (DCB) specimens are disclosed as an apparatus and method for conducting Mode I fracture resistance testing using the DCB specimens. In a first embodiment, a drill jig is used to locate the DCB specimen and guide a drilling process during creation of at least one through-hole in the DCB specimen. The drilling process may employ a traditional drill and drill bit, a laser drill, or a water jet. In another embodiment, a set of rotating pin blocks, each with a full-round or a half-round specimen pin at one end and a hanger full-round pin at the other end, engage the DCB specimen and facilitate the internal application of a fracturing load to the DCB specimen for the Mode I fracture resistance test. The present invention may significantly reduce the time and materials needed to prepare and test a DCB specimen.

A method of measuring adhesive strength includes setting an evaluation time (t.sub.e), fixing a substrate and an adhesive member to a measurement device, pulling the adhesive member fixed to the measurement device with a first measurement force (F.sub.e1) for the evaluation time (t.sub.e), pulling the adhesive member fixed to the measurement device is pulled with a second measurement force (F.sub.e2), which is obtained by increasing the first measurement force (F.sub.e1) by a preset amount, for the evaluation time (t.sub.e), and determining a reference measurement force (F.sub.es) which is a static force applied to the adhesive member when a distance by which a first portion of the adhesive member is detached from the substrate is equal to a preset distance (d.sub.t) is determined.

A biorobotic hybrid heart that preserves organic intracardiac structures and mimics cardiac motion by image-guided replication of the cardiac myofiber architecture of the left ventricle with an active synthetic myocardium that drives the motion of the heart. The active soft tissue mimic is adhered to the organic endocardial tissue in a helical fashion using a custom-designed adhesive to form a flexible, conformable, and watertight organosynthetic interface.

A method of quantitatively measuring the adhesive strength of a cover sheet of an electronic component housing container including a main body having multiple housing recesses in a longitudinal direction and a cover sheet peelably adhered to the main body. The method includes mounting the housing container on a carrier plate by fitting the housing recesses in one or more housing holes of the carrier plate which includes a plate body having the one or more housing holes in the longitudinal direction and multiple sprocket holes spaced apart from the housing holes in a width direction and arranged at regular intervals in the longitudinal direction; engaging some tooth tips of a sprocket in the sprocket holes; and peeling the cover sheet from the main body by rotating the sprocket using the width direction as an axis to move the carrier plate in the longitudinal direction.