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A new large-stroke compliant joint & micro/nano positioner design based on compliant building blocks
2009 Edition, June 1, 2009 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

During the phase of concept design of compliant joints & mechanisms, also synthesis of the mechanism, an effective design method is definitely important for generating a creative design. Currently, these design methods can boil down to three...

ASTM C495/C495M-12(2019) - Standard Test Method for Compressive Strength of Lightweight Insulating Concrete
December 15, 2019 - ASTM International

1.1 This test method covers the preparation of specimens and the determination of the compressive strength of lightweight insulating concrete having an oven-dry density not exceeding 800 kg/m3 [50 lb/ft3] as determined by the procedures described herein. This test method covers the preparation and...

ASTM C513/C513M-11(2019) - Standard Test Method for Obtaining and Testing Specimens of Hardened Lightweight Insulating Concrete for Compressive Strength
December 15, 2019 - ASTM International

1.1 This test method covers obtaining, preparing, and testing specimens of hardened, lightweight, insulating concrete made with either lightweight aggregate conforming to Specification C332 or using preformed foam made from a foaming agent conforming to Specification C869/C869M and having an...

ASTM C1140/C1140M-11(2019) - Standard Practice for Preparing and Testing Specimens from Shotcrete Test Panels
December 15, 2019 - ASTM International

4.1 Specimens obtained in accordance with the procedure section of this practice may be used for preconstruction studies of shotcrete mixtures, to qualify nozzlemen and equipment, or for quality control, or compressive or flexural strength testing, during the progress of a project.

ASTM C1222-19a - Standard Practice for Evaluation of Laboratories Testing Hydraulic Cement
December 15, 2019 - ASTM International

4.1 The testing of hydraulic cement is an important element in obtaining quality construction. A testing laboratory must be selected with care. 4.2 A testing laboratory shall be deemed qualified to perform and report the results of its tests if the laboratory meets the requirements of...

ASTM C1604/C1604M-05(2019) - Standard Test Method for Obtaining and Testing Drilled Cores of Shotcrete
December 15, 2019 - ASTM International

4.1 This test method provides standardized procedures for obtaining cored specimens to determine the compressive strength and splitting tensile strength of shotcrete during pre-construction, during construction, and from older shotcrete structures. 4.2 Generally, test specimens are obtained in situ...

ASTM D7425/D7425M-13(2019) - Standard Specification for Spray Polyurethane Foam Used for Roofing Applications
December 15, 2019 - ASTM International

1.1 This specification covers the types and physical properties of spray polyurethane foam (SPF) for use in SPF roofing applications. 1.2 This specification does not provide guidance for application. 1.3 The values stated in either SI units or inch-pound units are to be regarded separately as...

ASTM F2959-19 - Standard Practice for Aerial Adventure Courses
December 15, 2019 - ASTM International

4.1 The rational for developing a separate standard practice for Aerial Adventure Courses is based on the unique functional, operational and patron participation requirements when compared to amusement rides and devices. 4.2 The purpose of this practice is to provide designers,...

ASTM A213/A213M-19a - Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
December 1, 2019 - ASTM International

1.1 This specification2 covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T5, TP304, etc. These steels are listed in Tables 1 and 2. 1.2 Grades containing the letter, H, in their designation, have requirements different from those of...

ASTM A240/A240M-19 - Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
December 1, 2019 - ASTM International

1.1 This specification2 covers chromium, chromium-nickel, and chromium-manganese-nickel stainless steel plate, sheet, and strip for pressure vessels and for general applications including architectural, building, construction, and aesthetic applications. 1.2 The values stated in either SI...

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