Impact Absorption Performance Testing Service

Impact Absorption Performance Testing – Validating Energy Attenuation for Brazilian Safety and Industrial Applications

As an ISO/IEC 17025 accredited independent testing laboratory, we offer specialised impact absorption performance testing services tailored for Brazilian manufacturers, importers, and infrastructure project developers. Our dynamic testing platforms quantify how materials and assembled structures dissipate kinetic energy under controlled impact loads, providing critical safety data for products ranging from playground surfaces to automotive components and protective equipment. All methods are designed to harmonise with ABNT (Brazilian Association of Technical Standards), INMETRO regulatory requirements, and international sector-specific norms, ensuring that your shipments and installations meet the rigorous safety expectations of Brazilian end-users and oversight agencies.

Product Samples We Regularly Test for Impact Absorption

Our laboratory accommodates a diverse range of test specimens across multiple industry sectors. Typical samples include:

• Sports and playground surfacing – rubber tiles, poured-in-place elastomeric layers, artificial turf systems, and interlocking safety mats
• Automotive interior and exterior components – instrument panels, door trims, bumper beams, steering column components, and energy-absorbing foams
• Protective equipment and personal safety gear – industrial helmets, motorcycle limb protectors, knee and elbow guards, and fall-arrest harness padding
• Packaging and cushioning materials – expanded polystyrene (EPS), polyethylene foams, corrugated cardboard structures, and moulded pulp inserts
• Construction and civil engineering elements – crash barriers, bridge deck expansion joints, impact-resistant cladding panels, and laminated safety glass
• Footwear and orthopaedic components – athletic shoe midsoles, heel cushions, and insole materials for shock attenuation

Playground, Sports & Safety Surfacing – Critical Fall Height & HIC Testing

• Critical fall height and head injury criterion (HIC) determination – We perform drop impact tests using a standardised hemispherical or flat-headed missile (mass 5 kg or 20 kg, depending on standard) onto conditioned surfacing specimens. The acceleration-time history is captured using piezoelectric accelerometers sampling at >10 kHz, and we compute the Head Injury Criterion (HIC) and peak deceleration (G-max) following EN 1177 and ASTM F1292. These parameters directly assess whether the surface can reduce severe head injury risk for children and athletes, aligning with the safety requirements of Brazilian ABNT NBR 16000 (playground equipment safety).
• Temperature and moisture conditioning – To simulate real tropical and subtropical Brazilian climatic conditions, we condition test specimens at extremes of +5 °C up to +60 °C and at varying humidity levels (up to 95 % RH) prior to testing, per EN 12230 and ASTM F1551. This ensures that impact absorption performance is validated year-round, regardless of environmental exposure.
• Force reduction and energy restitution – For athletic track surfaces and synthetic turf, we measure vertical deformation, force reduction (%), and energy restitution (%) using a drop-test apparatus with a guided falling mass, strictly following World Athletics Certification Requirements and ABNT NBR 16652. These parameters are critical for injury prevention and athletic performance consistency.

Automotive & Transport Components – Dynamic Impact Energy Dissipation

• Low-speed bumper and interior trim impact tests – We apply pendulum and drop-weight impactors to evaluate the energy absorption capacity of bumpers, door panels, and knee bolsters. The tests follow ECE R21 (interior fittings) and FMVSS 201 (head impact) procedures, using a 6.8 kg headform impactor at defined velocities (typically 24 km/h or equivalent energy). Our data acquisition system records force vs. displacement curves, calculating total absorbed energy (Joules) and peak transmitted force (kN), which are critical for compliance with INMETRO vehicle safety certification schemes.
• High-rate crush testing for structural energy absorbers – For crash boxes and bumper beams, we perform quasi-static and dynamic compression tests at rates up to 2 m/s using a servo-hydraulic actuator, per ISO 6487 (road vehicles – measurement techniques). We determine the specific energy absorption (SEA) in J/g, crush stroke efficiency, and progressive folding behaviour, helping Brazilian OEMs and tier-1 suppliers optimise lightweight designs without compromising passenger safety.
• Component-level pendulum impact (Charply and Izod principles) – For polymer-based interior trim and structural plastics, we conduct instrumented Charpy and Izod impact testing per ISO 179 and ISO 180 over a temperature range of -40 °C to +80 °C to capture brittle-ductile transition behaviour, particularly relevant for automotive parts shipped through varied Brazilian climates.

Packaging, Cushioning & Drop Protection – Dynamic Shock Attenuation

• Cushion curve generation and fragility assessment – Using a pneumatic or free-fall drop tower, we impact packaged assemblies with a known mass and velocity, recording the transmitted acceleration to the simulated product (with an accelerometer embedded in a rigid mass). The resulting cushion curves (static stress vs. peak deceleration) are generated per ASTM D1596 and ISO 4651, defining the optimal cushion thickness and density for protecting sensitive goods – from electronics to pharmaceutical vials – during Brazilian road transport and maritime import logistics.
• Burst and puncture resistance under impact – For corrugated boxes and flexible pouches, we apply impact puncture tests following ASTM D7192 (impact resistance of rigid packaging) and ISO 3036 (board puncture resistance). These methods quantify the energy required to perforate the packaging material, ensuring that stacked loads withstand sudden drops or pallet-shifting events at distribution centres.
• Multiple-impact fatigue (repetitive shock) – We also perform repeated impact tests (up to 10,000 cycles) on foam and structural packaging to assess performance degradation over time. The drop height and impactor mass are set per ISTA 2A and ISTA 3E simulation protocols, which are widely referenced by Brazilian importers for supply-chain qualification.

Personal Protective Equipment (PPE) & Sports Gear – Energy Transfer Limitation

• Limb protector and helmet impact testing – For motorcycle and industrial helmets, we conduct impact attenuation tests using a guided drop frame with a metal headform (equipped with tri-axial accelerometers) from specified heights onto flat, hemispherical, and kerbstone anvils, per EN 1621-1 (motorcyclists’ limb joint protectors) and EN 960 (helmet test headforms). We report the peak transmitted force (in kN) and the force plateau duration, ensuring that residual force transmitted to the wearer remains below the thresholds defined by ABNT NBR 7471 and INMETRO Ordinance 456 for approved PPE.
• Shin and foot protector impact resistance – We perform dynamic impact tests on toe caps and shin guards using a 20 kg falling striker (guided vertical drop) per EN 12568 and ISO 20344 (personal protective equipment – test methods). Clearance and deformation are measured before and after impact to verify that the protective elements maintain a safe gap around the user’s anatomy.
• Sports shoe midsole shock attenuation – Using a modified impact tester with a 8.5 kg mass dropped from 50 mm, we measure peak deceleration (g) and energy return (%) for footwear midsoles, following ASTM F1614 and SATRA TM-142. These results assist Brazilian footwear exporters in benchmarking their products against global sports performance standards.

Composite & Laminated Construction Materials – Delamination and Penetration Resistance

• Drop-weight impact (DWI) on fibre-reinforced composites – We apply low-velocity drop-weight impact (up to 1,500 J) on laminated glass, GFRP, and CFRP panels using a hemispherical or ogival striker. The test runs per ASTM D7136 and ISO 6603-2, recording force-time and energy-time plots. We report the maximum impact force, absorbed energy, and the extent of internal delamination (verified via subsequent ultrasonic C-scanning), critical for Brazilian civil engineering projects that demand blast or accidental-impact resilience.
• Rockfall and barrier impact for slope stabilisation – For geotechnical applications, we conduct large-scale impact tests on wire mesh and rockfall barriers using a 500 kg to 2,000 kg impacting mass, per ETAG 027 and UNI 11211. We measure residual deformation, tensile force in anchors, and the system’s overall retained energy (kJ), directly supporting DNIT (National Department of Transport Infrastructure) and state environmental agencies in approving protective systems for Brazilian mountainous highways and mining pits.

Report Acceptance & Compliance with Brazilian and International Authorities

All impact absorption tests described above are conducted under our ISO/IEC 17025:2017 accreditation, with continuous calibration traceability to international reference standards. Our final test reports present impact force-time curves, absorbed energy calculations, statistical summaries (mean, standard deviation, coefficient of variation), and clear pass/fail decisions against specified acceptance criteria. These reports are structured to satisfy the technical documentation requirements of INMETRO (for product safety certification), ABNT (for normative compliance), ANEEL (for electrical substation equipment), and MAPA (for agricultural machinery guarding). We provide bilingual (Portuguese/English) versions and digital data packages (ASCII/Excel) for your engineering teams to integrate into finite element model validations, ensuring full traceability and defensible evidence for Brazilian market access, public works tenders, and insurance liability assessments.